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Articles on Bones

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Specialized anatomy means flightless penguins are master swimmers. Christopher Michel

How many bones do penguins have?

How did penguins end up with so few bones – and become lightning-fast swimmers?
Today, teens are often seen as troublesome and difficult. Ancient Roman writers also described adolescence as a period of “hooliganism and debauchery.” (Shutterstock)

Bones and teeth help reveal whether teenagers have always been a source of worry for their parents

Teens across millennia have yearned to explore, try new things and participate in risky behaviours. The key difference, however, seems to be the experience of a rebellion or restlessness.
Tyrannosaurus rex spanned all of ancient North America, and about 20,000 lived at once. Roger Harris/Science Photo Library vie Getty Images

How many Tyrannosaurus rex walked the Earth?

Using the incredible wealth of fossil data and a modern ecological theory, researchers estimated population density for the extinct apex predator.
Osteoporosis affects one in three women, but men are also concerned. Shutterstock

Could the solution to osteoporosis be in the bile?

There is no treatment for osteoporosis, which affects millions of people and costs billions of euros every year. What if the solution was in the bile? Explanations.

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