Xenopus is a type of frog that is commonly used as a model organism in biological research, and their eggs develop outside of the body, making them especially good for studying development.

Quick Take Boulenger’s backpack frog females carry fertilized eggs in a dorsal pouch, providing protection and moisture. Embryos undergo direct development, emerging as fully formed froglets without a ...

THE theories of Roux and Weismann concerning the significance of nuclear division have been the cause of much useful work. The attempt to decide experimentally whether the early divisions of a ...

A new study that compared the effects of cold and warm temperatures on the development of frog eggs into larvae found that environmental temperature significantly changes how the nervous system ...

A new study has revealed that male white-spotted bush frogs dedicatedly guard their fertilized eggs from other cannibalistic male frogs and predators. The study confirmed that the adult male ...

Things got a bit loud when wildlife ecologist Katy Delaney discovered signs that frogs were breeding. For five years, she had kept watch over the rare tadpoles and young frogs in the Santa Monica ...