Spermatozoal ultrastructure endorses other evidence that Ascaphus is the sister-group of all other anurans. Primitive (plesiomorphic) features of the sperm of Ascaphus, shared with those of urodeles ...

Frogs and other amphibians lay eggs, but mammals give birth to live young, right? Not always. A newly described species of frog gives birth to live tadpoles, and is the only known frog to do so, ...

WASHINGTON (Reuters) - Its fangs are not what makes the newly identified Indonesian frog species Limnonectes larvaepartus unique on Earth. The way it makes babies does. This little amphibian from the ...

MIAMI (AFP) ― In the depths of an Indonesian rainforest, scientists have identified the first known frog that gives birth to tadpoles instead of laying eggs, according to research published Wednesday.

Scientists have never seen anything quite like this before. It’s a newly discovered species of fanged frog that gives direct birth to live tadpoles instead of laying eggs. It isn’t that rare for ...