Dogs can hear sounds that you cant!
2
A hummingbird weighs less than a penny.
1k
The heart of a mouse beats 650 times per minute!
53
Crocodile babies don't have sex chromosomes; the temperature at which the egg develops determines gender.
45
Racehorses can wear out new horse shoes in one race.
38
Sea otters hold hands while sleeping so they don’t drift away from each other.
104
