Leonardo Da Vinci loved animals so much that he used to buy caged animals at the market just to set them free.
57
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
Tigers can see 6 times better at night than humans.
305
Cymothoa exigua is a type of parasite that enters through fish's gills, eats their tongue, and then replaces it.
6
A cow produces around 200,000 glasses of milk in her lifetime.
373
Cats and dogs can hear ultrasound.
350