because opossums have a lower body temperature than other mammals, they almost never get rabies.

a reindeer's eyes change color depending upon the season: gold in summer and blue in winter. this allows them to adjust the amount of light that enters their eyes. they are the only mammal known to do this.ma

just for the record, a coyote can run 23 mph faster than a roadrunner.

baby elephants use their trunks as pacifiers.

giraffes hum to each other at night. only at night.

if you're not a magician, it's illegal to own a pet rabbit in queensland, australia.

in switzerland, it's illegal to own just 1 guinea pig.

baby porcupines are known as porcupettes.

if left alone by predators or natural disasters, a pregnant female rabbit and her resulting offspring can produce as many as 94 million rabbits in just 5 years.

most mammals pee for about 21 seconds, regardless of their size.