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Nature always pushes the boundaries of evolution, never ceasing to amaze us with record breaking skills. The starting point is the biggest land animal, the African elephant, twice the height of a human and heavier than a minibus. The titans also have the biggest brains on land – 4 times bigger than a human’s, but don’t feel inadequate – plenty of animals wow with their size. Wildlife of all shapes can break records, the furthest travelling, strongest biters, but what’s the most successful animal of all?