The bearded vulture achieves peak survival by consuming a diet of up to 90% solid bone. It’s surprising that calcified remains offer greater caloric density than fresh meat. The acidic dissolution ...

If you’ve ever broken a bone, you probably thought it was best to rest and not put any weight on it. But somewhat counter-intuitively, exercise may actually play an important role in making sure ...

High above the tree line, where steep cliffs meet a clear blue sky, a unique bird circles patiently with a specific purpose. Below, wolves, lions, and eagles eat their kills, but this bird does not ...