Quick Take Boulenger’s backpack frog carries eggs in a dorsal pouch on its back instead of dropping them into water. This ...

A 161 million-year-old fossil, linked to a line of extinct frog-like amphibians, is the oldest tadpole ever found. By Asher Elbein The metamorphosis of a frog from baby to adult is one of nature’s ...

LOS ANGELES — The Los Angeles Zoo has released 450 tadpoles and 193 subadult southern mountain yellow-legged frogs into the streams of the San Gabriel Mountains in an effort to restore the species ...

Have you ever wondered how city life affects animals like frogs? A new study reveals that urban Túngara frog tadpoles develop faster —but end up being smaller — than tadpoles from forests, probably ...

The Eiffinger's tree frog found in Japan has a unique biological adaptation: its tadpoles do not defecate during their early developmental stages to reduce the risk of contaminating their small ...

Nearly 600 California red-legged frog tadpoles were released into Santa Monica Mountains streams recently, marking an emergency conservation success for a species that vanished from the area more than ...

Researchers visiting the Indonesian island of Sulawesi made a huge — and unexpected — discovery when they found the first frog known to give birth to live tadpoles. A vast majority of the more than ...

Eiffinger's tree frogs lay eggs in an isolated water bodies such as a gap between plant stems. Their tadpoles hold onto their poop for months to reduce risk of contaminating their small spawning areas ...