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A pigeon's feathers are heavier than its bones
A pigeon's feathers are heavier than its bones
Bone is strong --- Human thigh bones are stronger than concrete.
The skull is made up of 29 different bones
A baby is born with about 300 separate bones, but adults have 206


Vultures are able to swallow whole bones over a foot long because they have the most acidic digestive system in the animal world