Kangaroos are pretty peculiar on the outside: They're the world's largest marsupials, they hop to get around, and they use their tails as a fifth limb. But they're also pretty unusual on the inside: ...

Staff at Lehigh Valley Zoo in Schnecksville, Pennsylvania, are mourning the unexpected death of a female kangaroo. According to the zoo, Hopscotch had passed away right after veterinarian staff found ...