The colossal squid has the largest eyes in the world.
4
The sound of a tiger's roar can travel a distance of up to 2 miles (~3 km).
255
A tortoise named Adwaita lived to 255 years old. To put it into perspective, he was born before the United States of America existed and his death was announced on CNN (1750-2006).
12
15% of snails survive digestion by birds and are found alive in their droppings, potentially leading to the spread of snail populations.
1
Condoms were originally made of animal intestines or linen.
347
Rattlesnake mating sessions have been known to last more than 22 hours.
232