Birds are vertebrate animals adapted for flight. Many can also run, jump, swim, and dive. Some, like penguins, have lost the ability to fly but retained their wings. Birds are found worldwide and ...

Each year, seasonal flu sickens about 1 billion people worldwide and causes approximately 290,000 to 650,000 respiratory ...

Let’s learn some interesting facts about the mourning bird. Don’t let their soft look fool you—mourning doves are built for speed. Their tapered wings and streamlined bodies let them zip ...

Past societies developed a range of weird and wonderful explanations for birds’ annual disappearance. Some thought they became barnacles, others that they hibernated in cliffs. As recently as ...

These colors distinguish them as some of the world's most dramatic and attractive birds. Males often sport vibrant feathered ruffs or amazingly elongated feathers, which are known as wires or ...