All tadpoles grow into frogs, but not all frogs start out as tadpoles, reveals a new study on 720 species of frogs. The new study uncovers the surprising evolution of life cycles in frogs. All ...

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 ...

If you have any children in your life, imagine for a moment that they don't look anything like their parents, they don't eat anything humans normally eat, and they're active only while adults sleep.

The Eiffinger's tree frog (Kurixalus eiffingeri), found on Ishigaki and Iriomote islands in Japan, has a unique biological adaptation: its tadpoles do not defecate during their early developmental ...

Some animals make chemical defences against predators; others obtain them from their food. Researchers have now found the first example of parents chemically arming their young after birth. Ralph ...