In vertebrates, the skeleton of different regions of the body arises from different precursor cells. Researchers at the University of Basel have now discovered that these skeletal cells do not just ...
Morning Overview on MSN
Sharks have no bones at all; their skeletons are built entirely of cartilage
Sharks, a group of predators that have patrolled the oceans for more than 400 million years, carry no true bone anywhere in ...
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