When a male gentoo penguin "falls in love" with a female penguin, he searches the entire beach to find the perfect pebble to present to her.
25
It would take about 1,200,000 mosquitoes to fully drain the average human body of blood.
217
Rattlesnake mating sessions have been known to last more than 22 hours.
232
In 2011, a male tiger in India adopted a litter of orphaned cubs, taking on the role of ‘mother’. Wildlife officials say such behavior had never been observed before.
9
The reindeer is the only mammal that can see UV light.
17
Allegedly, Chrysippus, the Greek philosopher, died of laughter after getting his donkey drunk and watching it try to eat figs.
47