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

A record-breaking 60,636 entries from 113 countries and territories entered this year’s contest, now in its 61st year. South ...

The coloration on the frog is mottled, with a green background and “dark brown spots” with “some large pale green markings,” researchers said. There are “irregular small black dots” on the surface of ...

As a humid night cloaked a mountain forest of northern Thailand, a “fanged” creature moved through a pool of water with its “robust” limbs. Its patterned eyes scanned the surrounding plants, but it ...

Even within a single species, animals don't all respond in the same way to environmental changes. A new study of reed frogs ...

Inflatable frog costumes are selling out following the weekend's “No Kings” protests and to counter Trump’s demonization of ...