When dragonflies mate, their tails form a love heart.
22
The most expensive dog in the world is the Tibetan Mastiff; worth $1.5 million.
2
Cows as they are today never existed in the wild and were domesticated from aurochs some 10,500 years ago.
6
Bats sleep 18-20 hours per day.
5
Female kangaroos have three vaginas.
2
Denmark has twice as many pigs as there are people.
66
Dolphins can rapidly heal from extreme injuries, such as shark bites, and regenerate their original body shape.
19