The most expensive dog in the world is the Tibetan Mastiff; worth $1.5 million.
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The seahorse is the only fish to have a neck.
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The two oldest cats on record lived to 38 and 34 years old, both were owned by the same owner and lived off a diet of bacon, eggs, broccoli and coffee.
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The ancestor of all domestic cats is the African Wild Cat which still exists today.
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A 42-foot sperm whale has about 7 tons of oil in it.
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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.
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