Toads have made their way to just about every corner of the world, even potentially Antarctica, something deemed unthinkable in the past. What's behind this vast toad migration?v ...

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

There’s a toad invasion underfoot. No, really. According to a new study that analyzed the DNA of 124 species of toads, you can now find them on six of seven continents with a colony most-recently ...

The Nature Index 2025 Research Leaders — previously known as Annual Tables — reveal the leading institutions and countries/territories in the natural and health sciences, according to their output in ...

The color change, driven by hormones, seems aimed at preventing males from accidentally mating with each other.