A coral fragment can form a tissue bridge with a dying counterpart — and provide it with crucial microalgae.

HHS letters give WPATH, the American Medical Association, the American Psychiatric Association, American Psychological Association, the Endocrine Society, and others ten days to respond

From the author of the beloved The Last Days of the Dinosaurs, an imaginative celebration of T. rex from hatching to adulthoodTyrannosaurus rex is a prehisto...