American trees are in trouble. Based on recent estimates, up to one in every six native species in the continental US is in danger of going extinct, due to mounting threats such as invasive species, ...

This article was published in Scientific American’s former blog network and reflects the views of the author, not necessarily those of Scientific American When you hear the word “kangaroo,” you ...

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 ...

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 ...