Northern cardinals, blue jays, American robins, and house sparrows are common birds in North American cities. These small, ...

To survive such extreme winter conditions, the penguin dads huddle together in large groups. They protect each other and their eggs from freezing winds by taking turns standing in the warm center of ...

The estimated population of 16 penguin colonies — visible in satellite photos taken between 2009 and 2024 — declined 22% ...