Nectophrynoides comprise only about one percent of all frogs and toads, but that number is officially increasing. In a study published in the journal Vertebrate Zoology, biologists describe an ...

Scientists have discovered three new species of African tree toads that break one of biology’s best-known rules. Instead of ...

Amphibians like frogs and toads are a great way to observe metamorphosis. They lay eggs that develop into tadpoles, and then ...

Most recognize the African bullfrog (Pyxicephalus adspersus) as one of Africa’s largest known frogs, but there’s actually a lot more to this large amphibian than meets the eye. When it comes time to ...

African bullfrogs approach parenting a little differently from many other species. It is the males who take on the heavy lifting when it comes to childcare duties. The dad in this extraordinary ...

Rick Koval and I didn’t catch an adult bullfrog for our herp series this summer, but what we did find was more than suitable to cross the species off the list. It was a bullfrog tadpole, and it was ...

Tadpole species that lost their lungs through evolution never re-evolve them, even when environmental change would make it ...

Researchers have identified a new species of poison-dart frog, Ranitomeya hwata, in the remote bamboo-forest of Alto Purus ...

Researchers studied the evolution of the body sizes of frogs and their tadpoles. They found that the two life stages do not evolve completely independently of each other as previously thought. If you ...

Nitya Mohanty received funding for this work from the Center for Invasion Biology, Department of Botany and Zoology, Stellenbosch University and the Rufford foundation. The Indian bullfrog, which is ...

This archived news story is available only for your personal, non-commercial use. Information in the story may be outdated or superseded by additional information. Reading or replaying the story in ...