The most expensive dog in the world is the Tibetan Mastiff; worth $1.5 million.
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Jellyfish as a species are actually older than dinosaurs and sharks.
383
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
Squirrels forget where they hide about half of their nuts.
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Dolphins sometimes have fun by blowing bubbles and creating rings of air underwater, which they then swim through.
17
Honeypot ants are a unique insect that use their own bodies as living storage pots of honey.
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