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
One in three dog owners say they have talked to their pets on the phone.
427
Sergeant Stubby was the only war dog to be promoted to sergeant through combat in WWI. He saved his regiment from surprise mustard gas attacks, found and comforted the wounded, and even once caught a German spy by the seat of his pants, holding him there until American Soldiers found him.
16
There's a young hippo and a 130+ year old tortoise in a Kenyan wildlife preserve who are best friends and they even sleep and play together.
40
Penguins have a gland above their eye that turns saltwater into freshwater.
12
Dolphins sometimes have fun by blowing bubbles and creating rings of air underwater, which they then swim through.
17
It would take about 1,200,000 mosquitoes to fully drain the average human body of blood.
217
Vampire bats adopt orphans, and are one of the few mammals known to risk their own lives to share food with less fortunate roost-mates.
402