The eggs laid by birds come in an astonishing variety of shapes: ellipses in hummingbirds, spheres in owls, pointy ovoids in shorebirds and almost everything in between. Avian egg shape has fascinated ...
The unusually long, oval egg of the Indonesian maleo may look a lot like a potato, but this bird is no slouch. When the chicks of these anvil-headed animals hatch, they're almost immediately able to ...
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