Linked from

The 26 pages that link to External fertilization, each with the reason it gives.

• AmphibianRelated: Many frogs release eggs and sperm into water, where fertilization occurs.

• AmplexusRelated: During amplexus, the male releases sperm as the female lays eggs.

• SpawningRelated: Many spawners release gametes into water, where fertilization occurs externally.

• ZebrafishRelated: Fertilization outside the body makes embryos easy to collect and observe.

• PenaeidaeRelated: Many penaeids release eggs and sperm into seawater during spawning.

• Parental care in fishRelated: Many fish release gametes into water, leaving eggs exposed to environmental risks.

• HylidaeRelated: Most hylids fertilize eggs externally during amplexus.

• XenopusRelated: Xenopus eggs and sperm meet in water, allowing controlled laboratory fertilization.

• American bullfrogRelated: Females release eggs in water while males release sperm over them.

• CharacidaeRelated: Many characids release eggs and sperm into water during spawning.

• Giant salamanderRelated: Male giant salamanders guard nests where fertilization occurs in water.

• MatingRelated: Some mating behaviors coordinate the release of gametes into shared surroundings.

• RicefishRelated: Ricefish eggs are fertilized externally before developing outside the parent.

• AlytidaeRelated: Midwife toads fertilize eggs externally before males carry them.

• CarassiusRelated: Carassius typically releases eggs and sperm into water during spawning.

• Common midwife toadRelated: The eggs carried by the male are fertilized outside the female.

• UnionidaRelated: Many unionids release sperm into the water, which females draw in to fertilize their eggs.