Mind-Blowing Animal Facts

Blue whale hearts beat so slow you can hear them from three kilometers away.

That alone is mind blowing but wait until you hear this. When diving deep their heart only

beats once per minute, sometimes just eight times in an entire day. Rats actually laugh

when you tickle them but the sound is too high pitched for human ears to detect.

Snails can sleep for three straight years without waking up once. Kangaroos never

stop growing throughout their entire lives, constantly getting bigger until death. Camels can munch

on thorny cactuses without any problem. Elephants are the only mammals that physically cannot

jump. Giraffes have the same number of neck bones as humans, just seven,