A front limb or arm of a vertebrate animal, such as the arm of a human or the wing of a bird.
From 'fore-' (front) + 'limb' (an arm or leg). Used in anatomical contexts, replacing older 'foreleg' when discussing limbs that aren't strictly legs, like wings or arms.
A bat's forelimbs literally became wings through evolution—the same bones in your arm stretch between elongated fingers, showing how nature recycles designs across millions of years.
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