Meysi is one of the world's smallest dogs, measuring in at just 7cm tall, 12cm long, and weighing a meagre 250 grams (only slightly heavier than a hamster!)
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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.
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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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One litter of kittens can be produced by more than one father.
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A new born kangaroo is small enough to fit in a spoon!
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Kissing releases masses of oxytocin, a "love potion" that helps couples bond and feel more attracted to each other.
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