Before Darwin’s theory became central to evolutionary biology, it still had gaps that were left to be filled—until a certain ...

An easy way that I stay connected to nature, even if I have a busy schedule, is taking a moment to look out a window and ...

Sign up for CNN’s Wonder Theory science newsletter. Explore the universe with news on fascinating discoveries, scientific advancements and more. Living organisms ...

Wondering why your bird is looking a little less feathered than usual? If you’ve ruled out health issues or stress resulting ...

Finn moved with purpose, her nose working the wind, seeking the tantalizing aroma of feathers hidden in the tawny grassland ...

I’m so sorry sweetheart,” I said quietly to the soft gray bird, cradled in my hands. “I’m so sorry that we killed you all.” It was a passenger pigeon, last ...

Seen as harbingers of death and disease, staples of horror films and Halloween decor, vultures actually play an important ...

While people were encouraged to stay home and bundle up, Wonders of Wildlife's penguins left their indoor enclosed habitat for the snowy outdoors.

The Pulitzer Prize-winning science writer talks about burnout from covering the pandemic and how bird-watching gave him a new ...