Tigers can see 6 times better at night than humans.
305
George was the world's largest dog who weighed 233 pounds, stood at 43 inches tall from paw to shoulder, and ate 180 pounds of food a month.
7
The sound of a tiger's roar can travel a distance of up to 2 miles (~3 km).
255
By putting a frog in a bucket of milk, scientists following up on an ancient Russian way of keeping milk from going sour have identified a wealth of new antibiotic substances.
9
When a male gentoo penguin "falls in love" with a female penguin, he searches the entire beach to find the perfect pebble to present to her.
25
A 42-foot sperm whale has about 7 tons of oil in it.
209