As H5N1, also known as avian influenza or bird flu, surges in birds across the world, public health experts in Illinois and nationwide are closely monitoring cases and recommend residents take ...

When you picture a dinosaur, what does it look like? Maybe you think of four-legged herbivores like Apatosaurus or Triceratops. Maybe you imagine large armored dinosaurs like Ankylosaurus or ...

A “spark bird” is the species that inspires someone to start bird-watching. For Trish O’Kane, that bird was the northern cardinal. The backyard regular caught her eye while she was living with a ...

Fossilized feathers of an extinct bird show it molted differently than modern birds. The prehistoric bird lost its feathers all at once, while many modern birds molt in waves. Regrowing feathers uses ...