Explore the strange animal behaviors science can’t fully explain in this roundup of nature’s enduring mysteries.

We like to think we have animals figured out: Owls prowl at night, squirrels scamper by day, and bears sleep through winter. But it turns out wildlife isn't following our rule book, and a new global ...

Never underestimate the mind of a crow. Members of a family of birds that includes ravens, rooks, magpies, and jays, crows have been known to bend wire into hooks to retrieve food; drop nuts in a road ...

Homosexual behavior is much more common across the animal kingdom than we first thought, new research has found. Scientists found that 78 percent of animal behavior experts had seen some degree of ...

For nearly twenty years, satellites have quietly gauged the flow of sunlight and heat through the Earth’s atmosphere. Today, ...

(CNN) — Same-sex sexual behavior has been observed in more than 1,500 animal species, but a new study has found that it is massively underreported by researchers. Observations of this same-sex ...