The most expensive dog in the world is the Tibetan Mastiff; worth $1.5 million.
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Early American humans hunted car-size armadillos and used their shells for houses.
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A 42-foot sperm whale has about 7 tons of oil in it.
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Baks the blind boxer has a seeing eye goose named Buttons; a four-year-old goose who leads the pup around everywhere either by hanging onto him with her neck, or by honking to tell him which way to go.
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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.
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There's a rare breed of pig that looks like a sheep.
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