What physical adaptation reflects the need for Weaver birds to eat hard-shelled seeds?
Answer
Large beaks capable of cracking thick shells
Many weaver species rely significantly on seeds and grains, which often have tough, hard outer casings protecting the energy-rich kernel inside. To access this necessary food source, these birds have evolved large beaks. These powerful beaks function as mechanical tools specifically adapted to exert the necessary force to effectively crack open the thick shells of their preferred seeds, demonstrating a clear structural adaptation tied to the granivorous aspect of their omnivorous diet.
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