Rattlesnake mating sessions have been known to last more than 22 hours.
232
The elephant brain weighs about 6,000g.
274
The colossal squid has the largest eyes in the world.
4
The difference between antlers and horns is that antlers are shed each year and are made of bone while horns are kept for life and are made of living tissue and bone with a sheath that is very similar to human finger nails.
10
Allegedly, Chrysippus, the Greek philosopher, died of laughter after getting his donkey drunk and watching it try to eat figs.
47
In 1918, a homing pigeon saved over 190 American soldiers by delivering a message to nearby support despite having been shot through the breast, blinded in one eye, covered in blood, and with a leg hanging on by just a tendon.
22
Jaguars frequently get high by eating hallucinogenic roots, which also increases their senses for hunting.
6