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searching for Internal fertilization 94 found (206 total)

Ecdysozoa (2,123 words) [view diff] exact match in snippet view article find links to article

in the epidermis – under control of the prohormone ecdysone, and internal fertilization. The group was initially contested by a significant minority of

Salamandridae (1,558 words) [view diff] exact match in snippet view article find links to article

length. Many species within this family reproduce by method of internal fertilization. Additionally, there are many species-specific courtship rituals

Pupfish (1,142 words) [view diff] exact match in snippet view article find links to article

male may be modified into an intromittent organ by means of which internal fertilization takes place. Most pupfishes' diet consists, mainly, of algae, decaying

Sphaeriidae (225 words) [view diff] exact match in snippet view article find links to article

†Sphaericoncha Kolesnikov, 1980 Sphaeriidae are hermaphrodites with internal fertilization. Developing young are incubated within their mother (ovoviviparity)

Xiphophorus (1,563 words) [view diff] exact match in snippet view article find links to article

world Poeciliids, platies and swordtails are live-bearers that use internal fertilization and give birth to live young instead of laying eggs like the bulk

Copula sivickisi (648 words) [view diff] exact match in snippet view article find links to article

It is unusual among box jellyfish in having a mating ritual and internal fertilization. Its scientific name honours the Lithuanian zoologist Pranciškus

Lepidogalaxias (910 words) [view diff] exact match in snippet view article find links to article

levels are highest. Males have a uniquely modified anal fin used for internal fertilization. When not in use, it is folded strongly to the left or right and

Kate Trinajstic (1,270 words) [view diff] exact match in snippet view article find links to article

John (2009-08-13). "Pelvic claspers confirm chondrichthyan-like internal fertilization in arthrodires". Nature. 460 (7257): 888–889. Bibcode:2009Natur

Placoderm (4,235 words) [view diff] exact match in snippet view article find links to article

members of Homostiidae, and Heterosteus. Extraordinary evidence of internal fertilization in a placoderm was afforded by the discovery in the Gogo Formation

Female sperm storage (3,239 words) [view diff] exact match in snippet view article find links to article

integral stage in the reproductive process for many animals with internal fertilization. It has several documented biological functions including: Supporting

Atherinomorpha (451 words) [view diff] exact match in snippet view article find links to article

freshwater groupings, and this taxon contains a greater diversity of internal fertilization than any other group of fishes. Species may be oviparous or viviparous

Xenacoelomorpha (1,328 words) [view diff] exact match in snippet view article find links to article

Xenoturbella have external fertilization, and Acoelomorpha has internal fertilization. All xenacoelomorphs are bilateral, meaning they have a central

Amplexus (2,529 words) [view diff] exact match in snippet view article find links to article

possess an intromittent organ, unique among anurans, for internal fertilization. Internal fertilization does occur in a few other genera, including Nectophrynoides

Tetrablemmidae (532 words) [view diff] exact match in snippet view article find links to article

haplogyne spider (Arachnida, Araneae, Tetrablemmidae) indicates internal fertilization and full female control over transferred sperm". Journal of Morphology

Arthrodira (990 words) [view diff] exact match in snippet view article find links to article

February 2009). "Devonian arthrodire embryos and the origin of internal fertilization in vertebrates". Nature. 457 (7233): 1124–1127. Bibcode:2009Natur

Hydrobiidae (1,885 words) [view diff] exact match in snippet view article find links to article

individuals, but very rarely reproduction may be parthenogenic, caused by internal fertilization. The females lay eggs in single capsules on the leaves or stems

Charonia (742 words) [view diff] exact match in snippet view article find links to article

hermaphrodites; they have separate sexes and undergo sexual reproduction with internal fertilization. The female deposits white capsules in clusters, each of which contains

Nectophrynoides (223 words) [view diff] exact match in snippet view article find links to article

novel reproductive mode in frogs: a new species of fanged frog with internal fertilization and birth of tadpoles". PLOS ONE. 9 (12): e115884. Bibcode:2014PLoSO

Robert Dick (561 words) [view diff] exact match in snippet view article find links to article

"Copulation in antiarch placoderms and the origin of gnathostome internal fertilization" (PDF). Nature. 517 (7533): 196–199. Bibcode:2015Natur.517..196L

Tubularia (248 words) [view diff] exact match in snippet view article find links to article

female reproductive structures by means of a chemical substance. Internal fertilization occurs in the female medusoids. The fertilized eggs develop into

Nematomorpha (1,812 words) [view diff] exact match in snippet view article find links to article

the body. Reproductively, they have two distinct sexes, with the internal fertilization of eggs that are then laid in gelatinous strings. Adults have cylindrical

Egg case (Chondrichthyes) (1,840 words) [view diff] exact match in snippet view article

species, egg cases may have one or more tendrils. Shortly after internal fertilization, the fertilized ovum enters the partially formed egg case located

Sebastes goodei (700 words) [view diff] exact match in snippet view article find links to article

12-inch female to about 538,000 in a 22-inch fish. Rockfish have internal fertilization, eggs incubate and embryos hatch in the ovaries, with subsequent

Limnonectes (1,113 words) [view diff] case mismatch in snippet view article find links to article

Novel Reproductive Mode in Frogs: A New Species of Fanged Frog with Internal Fertilization and Birth of Tadpoles". PLOS ONE. 9 (12): e115884. Bibcode:2014PLoSO

Rainbow goodeid (1,209 words) [view diff] exact match in snippet view article find links to article

modified anal fin (andropodium), used for aiding sperm transfer in internal fertilization. The unpaired fins are yellow, black, or red in color. A black band

Chimaera (2,477 words) [view diff] exact match in snippet view article find links to article

resembles that of sharks in some ways: males employ claspers for internal fertilization of females and females lay eggs within spindle-shaped, leathery

Sirenidae (1,015 words) [view diff] exact match in snippet view article find links to article

critical to phylogeny, as Salamandroidea, the third suborder, use internal fertilization which may be pair with maternal care, meaning that sirens are one

Haplopharynx (177 words) [view diff] exact match in snippet view article find links to article

sclerotised stylet and set of needles. Copulation lead to the internal fertilization. Egg is entolecithal and show spiral cleavage pattern. Karling,

Ocoee salamander (2,475 words) [view diff] exact match in snippet view article find links to article

individuals will lead to successful copulation. Ocoee salamanders do internal fertilization. When a female is ready for mating, the male uses a spermatophore

Siphonarioidea (1,107 words) [view diff] exact match in snippet view article find links to article

that Siphonarioidea are simultaneous hermaphrodites that practice internal fertilization. During copulation, a Siphonaria will insert their penis into the

Cymbiolacca (360 words) [view diff] exact match in snippet view article find links to article

in the sand to consume it. Like other Volutidae Cymbiolacca have internal fertilization and lay eggs from which snail develop directly. There is no pelagic

Social selection (2,118 words) [view diff] exact match in snippet view article find links to article

represents a transition from broadcast fertilization to localized and internal fertilization. Simultaneous hermaphrodism exists in species with pre-Cambrian

Sea angel (1,697 words) [view diff] exact match in snippet view article find links to article

many gastropods, sea angels are simultaneous hermaphrodites with internal fertilization. A fertilized animal later releases a gelatinous egg mass, and the

Limia (839 words) [view diff] exact match in snippet view article find links to article

transfer. Because of the asymmetrical energy costs associated with internal fertilization, females in many Poeciliid species act as the choosy sex, with males

Plagiopholis (407 words) [view diff] exact match in snippet view article find links to article

arthropods (Zhao 2006). All species are oviparous, meaning they use internal fertilization to lay eggs. Plagiopholis species can be distinguished from other

Salamander (11,027 words) [view diff] exact match in snippet view article find links to article

fertilization is internal. As a general rule, salamanders with internal fertilization have indirect sperm transfer, but in species like the Sardinian

Starfish (11,276 words) [view diff] exact match in snippet view article find links to article

arms. Fertilization is generally external but in a few species, internal fertilization takes place. In most species, the buoyant eggs and sperm are simply

Palpal bulb (2,200 words) [view diff] exact match in snippet view article find links to article

species, which retain one muscle. Like most arachnids, spiders have internal fertilization by indirect sperm transfer. The tubular testes of a male spider

Rossia (851 words) [view diff] exact match in snippet view article find links to article

females partners for reproduction. Rossia commonly reproduce by internal fertilization. During mating, the male inserts the hectocotlyus into the mantle

Rabbit fish (1,062 words) [view diff] exact match in snippet view article find links to article

monstrosa are fish that have distinct sex from birth. They reproduce by internal fertilization of male and female. For reproduction, C. monstrosa displays a small

Caribbean reef squid (1,291 words) [view diff] exact match in snippet view article find links to article

result in the transfer of the spermatophore to the oviduct for internal fertilization. Allcock, A.L. (2019). "Sepioteuthis sepioidea". IUCN Red List of

Coral snake (4,317 words) [view diff] exact match in snippet view article find links to article

snakes in captivity is about seven years. M. fulvius reproduction is internal fertilization through the use of hemipenes. The breeding season occurs from spring

Locust coqui (488 words) [view diff] exact match in snippet view article find links to article

that allow it to adhere to leaves and branches. The species uses internal fertilization – the fertilized eggs undergo direct development. The tadpole stage

Zenarchopteridae (1,564 words) [view diff] exact match in snippet view article find links to article

externally, as is typical for bony fish, at least some practice internal fertilization: male Zenarchopterus use a modified anal fin to direct sperm into

Chordodes formosanus (407 words) [view diff] exact match in snippet view article find links to article

Japan and Taiwan. Reproductively, they are dioecious, with the internal fertilization of eggs that are then laid in gelatinous strings. Adults have cylindrical

Common periwinkle (2,981 words) [view diff] exact match in snippet view article find links to article

an organism. L. littorea is oviparous, reproducing annually with internal fertilization of egg capsules that are then shed directly into the sea, leading

Common mudpuppy (1,606 words) [view diff] exact match in snippet view article find links to article

eggs are fertilized. Females store the sperm until ovulation and internal fertilization take place, usually just prior to deposition in the spring. Before

Djoko Iskandar (1,217 words) [view diff] case mismatch in snippet view article find links to article

Novel Reproductive Mode in Frogs: A New Species of Fanged Frog with Internal Fertilization and Birth of Tadpoles". PLOS ONE. 9 (12): e115884. doi:10.1371/journal

Fringefin lanternshark (1,273 words) [view diff] exact match in snippet view article find links to article

ovoviviparous. Ovoviviparity is a method of reproduction in which there is internal fertilization and the developing young feed on the egg yolk. The mother then gives

Brook silverside (933 words) [view diff] exact match in snippet view article find links to article

reproduce. Some studies report that brook silversides reproduce by internal fertilization, although this has not been entirely confirmed. When the eggs are

Orania corallina (342 words) [view diff] exact match in snippet view article find links to article

spawner. Life cycle does not include trochophore stage. It has internal fertilization. It has dextrally coiled body symmetry. The length of the shell

Barton Springs salamander (1,642 words) [view diff] exact match in snippet view article find links to article

of their eggs is consistent with most salamanders, which utilize internal fertilization in which sperm are released onto the eggs as they pass through the

Tardigrade (7,607 words) [view diff] exact match in snippet view article find links to article

cuticle of the female and then covered with sperm. A few species have internal fertilization, with mating occurring before the female fully sheds her cuticle

Anatomy (8,860 words) [view diff] exact match in snippet view article find links to article

deoxygenated bloodstreams. The reproductive system has evolved for internal fertilization, with a copulatory organ present in most species. The eggs are surrounded

Conidae (5,113 words) [view diff] exact match in snippet view article find links to article

cone snails appear to reproduce sexually, with separate sexes and internal fertilization. varying numbers of eggs in egg capsules laid in substrate by cone

Stethacanthus (2,328 words) [view diff] exact match in snippet view article find links to article

of endoskeletal tesserae (mineralized blocks of cartilage) and internal fertilization. Chondrichthyes is further divided into two subclasses: Elasmobranchii

Smooth butterfly ray (1,131 words) [view diff] exact match in snippet view article find links to article

offspring; however, they give birth on a yearly basis. They use internal fertilization which is the process of the male inserting his claspers into the

Redtail splitfin (836 words) [view diff] exact match in snippet view article find links to article

2008-08-16. Bisazza, Angelo (1997). "Sexual selection constrained by internal fertilization in the livebearing fish Xenotoca eiseni". Animal Behaviour. 54 (6):

Illex argentinus (865 words) [view diff] exact match in snippet view article find links to article

depth of about 200 m. Argentine shortfin squids reproduce through internal fertilization. During the mating season, which lasts throughout the summer, they

Woman (10,710 words) [view diff] exact match in snippet view article find links to article

becoming pregnant and bearing children. Pregnancy generally requires internal fertilization of the eggs with sperm, via either sexual intercourse or artificial

Caecilian (5,434 words) [view diff] exact match in snippet view article find links to article

internal insemination exclusively (although most salamanders have internal fertilization and the tailed frog in the US uses a tail-like appendage for internal

Pacific ocean perch (2,485 words) [view diff] exact match in snippet view article find links to article

internally and receive at least some nourishment from the mother), with internal fertilization and the release of live young. Insemination occurs in the fall,

Tiger shark (5,283 words) [view diff] exact match in snippet view article find links to article

to 290 lb). Females mate once every three years. They breed by internal fertilization. The male inserts one of his claspers into the female's genital

Northern banana salamander (702 words) [view diff] exact match in snippet view article find links to article

its tail. The northern banana salamanders reproduce biennially. Internal fertilization takes place after successful courtship, where the male salamander

Kihansi spray toad (1,654 words) [view diff] exact match in snippet view article find links to article

seen in the bellies of gravid females. The toad breeds by using internal fertilization, in which females retain larvae internally in the oviduct until

Regal horned lizard (1,132 words) [view diff] exact match in snippet view article find links to article

are oviparous and reproduce via sexual reproduction (specifically internal fertilization). Females tend to be ovulating in July and August. Males tend to

Guppy (6,117 words) [view diff] exact match in snippet view article find links to article

briefly inserts the gonopodium into the female's genital pore for internal fertilization. However, in the case of sneaky mating where copulation is forced

Limia islai (438 words) [view diff] exact match in snippet view article find links to article

them and mate. Limia islai is a livebearer, which reproduces via internal fertilization and gives birth to live young. Mated females will release between

Julia exquisita (880 words) [view diff] exact match in snippet view article find links to article

more complex penis. Adult members of the species reproduce using internal fertilization in which male sperm fertilize female eggs which are laid and left

Nymphoides peltata (2,002 words) [view diff] exact match in snippet view article find links to article

to relocate once N. peltata mats form. N. peltata also affects internal fertilization patterns as it moves nitrogen and phosphorus up from the sediment

Woolly sculpin (884 words) [view diff] exact match in snippet view article find links to article

background of its habitat. Their reproduction is oviparous with internal fertilization and spawning occurs in shallow coastal waters. Each female lays

Pagurus longicarpus (1,291 words) [view diff] exact match in snippet view article find links to article

pleopods where her eggs are attached. P. longicarpus have sexual internal fertilization and must exit their shells in order to mate. After fertilization

Xenoturbella bocki (1,853 words) [view diff] exact match in snippet view article find links to article

This population differed from specimens identified as X. bocki in internal fertilization, its small size of 12 mm (0.47 in) at most, and its pink coloration –

Corynopoma (813 words) [view diff] exact match in snippet view article find links to article

opportunities to mate. Males lack external gonopodia so in order for internal fertilization to occur in the female, they need to be within close proximity for

Bivalvia (13,138 words) [view diff] exact match in snippet view article find links to article

Sperm is drawn into a female's gills with the inhalant water and internal fertilization takes place. The eggs hatch into glochidia larvae that develop within

Caenorhabditis elegans (10,541 words) [view diff] exact match in snippet view article find links to article

produces male gametes first, and lays eggs through its uterus after internal fertilization. Hermaphrodites produce all their sperm in the L4 stage (150 sperm

Paleolimnology (4,538 words) [view diff] exact match in snippet view article find links to article

of iron-bound phosphorus to the overlying water. This process of internal fertilization would stimulate biological productivity, further accelerating the

Lamellibrachia luymesi (796 words) [view diff] case mismatch in snippet view article find links to article

Young, Craig M.; Tyler, Paul A. (5 October 2004). "Sperm Storage, Internal Fertilization, and Embryonic Dispersal in Vent and Seep Tubeworms (Polychaeta:

Ctenophora (12,162 words) [view diff] exact match in snippet view article find links to article

epidermis. Fertilization is generally external, but platyctenids use internal fertilization and keep the eggs in brood chambers until they hatch. Self-fertilization

Northern pygmy salamander (1,131 words) [view diff] exact match in snippet view article find links to article

so she may pick it up with her cloaca. This is how they achieve internal fertilization, and the female will lay a clutch averaging 3-10 eggs in a seepage

Lissocarcinus orbicularis (1,807 words) [view diff] exact match in snippet view article find links to article

females also dominate in population numbers. These crabs undergo internal fertilization, with many females brooding their eggs until they are prepared to

Behavioral ecology (13,874 words) [view diff] exact match in snippet view article find links to article

cichlid fish V. moorii exhibits biparental care. In species with internal fertilization, the female is usually the one to take care of the young. In cases

Human mating strategies (17,417 words) [view diff] exact match in snippet view article find links to article

have a higher minimum parental investment. They have to invest in internal fertilization, placentation, and gestation, followed by childbirth and lactation

Long-toed salamander (7,105 words) [view diff] exact match in snippet view article find links to article

suborder Salamandroidea, which includes all the salamanders capable of internal fertilization. The sister species to A. macrodactylum is A. laterale, distributed

Sphaeroma terebrans (2,273 words) [view diff] exact match in snippet view article find links to article

start a burrow in a new location. Sphaeroma terebrans utilize an internal fertilization system, meaning that fertilization occurs in the individual isopods

Animal embryonic development (3,187 words) [view diff] exact match in snippet view article find links to article

species, the process can occur within the body of the female in internal fertilization, or outside in the case of external fertilization. The fertilized

Octopus bocki (895 words) [view diff] exact match in snippet view article find links to article

females are larger than males. They are gonochoristic and exhibit internal fertilization through the male's hectocotylus, a modified arm that transfers spermatophores

Rimicaris exoculata (1,245 words) [view diff] exact match in snippet view article find links to article

ectosymbionts are attached. Rimicaris shrimp reproduce through internal fertilization and are protogynous. Females carry their embryos under their abdomen

Pseudobiceros fulgor (892 words) [view diff] exact match in snippet view article find links to article

the male and female both have their respected reproductive organ. Internal fertilization takes place when sperm and egg come together. The fertilized eggs

2016 in paleoichthyology (5,611 words) [view diff] exact match in snippet view article find links to article

from China sheds new light on the peltopleuriform phylogeny and internal fertilization". Science Bulletin. 61 (22): 1766–1774. Bibcode:2016SciBu..61.1766X

2017 in paleoichthyology (8,359 words) [view diff] exact match in snippet view article find links to article

Herbst; Gastón Aguilera; J. Marcos Mirande (2017). "The rise of internal fertilization in the Anablepidae (Teleostei, Cyprinodontiformes): two new genera

Rimicaris kairei (1,429 words) [view diff] exact match in snippet view article find links to article

Rimicaris shrimp are protogynous and reproduce sexually through internal fertilization. Rimicaris kairei shrimp reproduce during the austral summer, during

2018 in paleoichthyology (10,038 words) [view diff] exact match in snippet view article find links to article

"Copulation in antiarch placoderms and the origin of gnathostome internal fertilization". Nature. 517 (7533): 196–199. doi:10.1038/nature13825. hdl:2328/35425

2012 in fish paleontology (3,064 words) [view diff] exact match in snippet view article find links to article

southern France: relationships, taxonomic position, and evidence of internal fertilization" (PDF). Vertebrate Zoology. 62 (3): 371–386. Alexandre F. Bannikov