Hummingbirds have high metabolisms, but what's even more surprising is the metabolism rate of their hatchlings.

Cardiac macrophages in newborn mice promoted heart cell proliferation after injury, offering a potential approach to ...

When we think of hummingbirds, speed is often the first thing that comes to mind. These fast-flying birds are practically hyperactive in their behavior, with the metabolism to prove it. Hummingbirds ...