A new study has found that animals that put more energy into having and supporting offspring may age faster and live shorter ...

The little skeleton was curled so tightly it looked as if it had never really entered the world. For years, that mattered ...

But there are other reasons that a species might synchronously reproduce. In one social group of banded mongoose, more than ...

Cooler temperatures have now forced the worms into hiding here in Canada, but in other parts of the continent they are ...

Discovery of a Lystrosaurus embryo inside an egg proves early mammal relatives laid eggs and survived mass extinction through ...

A six-year study reveals that the rodent, which does not develop cancer or feel pain, also has a more sophisticated system of ...

In the aftermath of Earth’s most catastrophic extinction event, one unlikely survivor rose to dominate a shattered world: ...

Threats, Recovery Stories, and How We Can Help Across the globe, endangered species face a web of threats that undermine ecosystems and the services they provide. This piece explains the main ...

The Amazon molly is an all-female fish that ditched sexual reproduction entirely, thriving for over 100,000 years through ...

Scientists discover the first fossil egg of a mammal ancestor, offering new clues to how Lystrosaurus survived extreme ...

Scientists have definitively confirmed that the ancient ancestors of mammals reproduced by laying eggs. This is evidenced by ...

A remarkable new discovery is shedding light on one of the greatest survival stories in Earth's history, and answering a ...