The cat brain weighs about 30g.
167
Macaques monkeys in Japan learned to steal purses and wallets, take out the coins, and use them to buy drinks and snacks from vending machines.
26
Rattlesnake mating sessions have been known to last more than 22 hours.
232
There's a rare breed of pig that looks like a sheep.
14
The CIA once spent $20 million on a cat equipped with gear to spy on the Soviets, but it was hit by a taxi.
328
15% of snails survive digestion by birds and are found alive in their droppings, potentially leading to the spread of snail populations.
1
Cymothoa exigua is a type of parasite that enters through fish's gills, eats their tongue, and then replaces it.
6