Facts about animals

Here are some interesting facts about animals:

• The octopus has three hearts.
• A giraffe can clean its ears with its 21-inch tongue
• Kangaroos can't walk backwards.
• Starfish don't have brains.
• Koalas and humans are the only animals that have finger prints.
• All polar bears are left-handed.
• Camels have three eyelids to protect themselves from blowing sand
• Some octopuses have been known to eat their arms off when they are exposed to stressful situations
• Rats multiply so quickly that in 18 months, two rats could have over a million descendants
• A dragonfly has a lifespan of 24 hours

• Cats have over one hundred vocal sounds. Dogs only have about 10.
• Armadillos have four babies at a time and they are always all the same sex
• A hummingbird weighs less than a penny
• A cow produces 200 times more gas a day than a person
• A blue whale gains approximately 200 pounds a day for the first seven months of its life
• Over 10,000 birds a year die from smashing into windows
• Dolphins nap with one eye open
• Female alligators lay about 40 eggs that hatch in 60 - 70 days
• An ostrich's eye is bigger than its brain.
• Horses can't vomit

  

(images via vi.sualize.us)