Harvard researchers described the phenomenon as one of the rare examples of females coming out on top in the animal kingdom.

These are the prettiest freshwater fish, from vibrant brook trout and pumpkinseed sunfish to majestic lake sturgeon. Check out how these species made our list!

Four baby Galapagos tortoises made their public debut Wednesday at the Philadelphia Zoo. They are the offspring of the zoo’s ...

The journey to recovery was long, complex, and in some ways unprecedented, but has achieved an unthinkable success of ...

Lele Pons and Guaynaa had their gender reveal party, sharing with their followers and friends whether their first baby will ...