Rex the German Shepherd was a rescue dog with a bad temper. He refused to be fed by humans and would attack strangers, but he’s a changed dog after falling in love with Geraldine the goose!
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Cats recognise the voice of their owner, but never evolved to care.
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The reindeer is the only mammal that can see UV light.
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Early American humans hunted car-size armadillos and used their shells for houses.
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There's a rare breed of pig that looks like a sheep.
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