The elephant brain weighs about 6,000g.
274
Nicole Kidman is scared of butterflies.
65
Cymothoa exigua is a type of parasite that enters through fish's gills, eats their tongue, and then replaces it.
6
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
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
Cats and dogs can hear ultrasound.
350
Squirrels forget where they hide about half of their nuts.
698