Reginald (Reggie) the Great Dane, from Idaho, welcomed Pearl the chihuahua, from Florida, into his home earlier this month, ...

Reggie, a 7-year-old Great Dane from Idaho, and Pearl, a 4-year-old Chihuahua from Florida, put their (size) differences ...

Just like one commenter said, Pearl is "barely the size of [Reggie's] ear!" This adorable duo met up in Idaho, where the ...

Reggie, a 7-year-old Great Dane who stands at a staggering 3 feet 4 inches, and Pearl, a 4-year-old Chihuahua who measures in ...

There are fewer than 1,000 Bornean elephants left in the wild. Logging and palm oil plantations have destroyed their habitat ...

Guinness World Records shared video from the historic meeting between the world's tallest living dog -- standing 3 feet, 3 inches tall -- and the world's shortest dog, who stands at 3.59 inches tall.

A new study suggests the platypus and echidna — the only egg-laying mammals — had a water-dwelling ancestor. The finding ...