The giraffe is the tallest mammal in the world, with even new-born babies being taller than most humans. Baby Giraffes can stand within half an hour and after only 10 hours can actually run alongside their family. Giraffes spend most of their lives standing up; they even sleep and give birth standing up. Giraffes only spend between 10 minutes and two hours asleep per day. Source
Giraffe
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