Earth’s history has been shaped by five mass extinctions—catastrophic periods when life changed so dramatically that entire ...

Scientists are increasingly worried we may be witnessing the start of the “sixth mass extinction” – the first to be caused by ...

Researchers analyzed 200 fossil teeth from ancient mammals in China, revealing how they adapted and diversified after the ...

This video looks at the deadliest disasters in human and planetary history, from famines and plagues to asteroid impacts, ...

A rapid climate collapse during the Late Ordovician Mass Extinction devastated ocean life and reshuffled Earth’s ecosystems. In the aftermath, jawed vertebrates gained an unexpected edge by surviving ...

Curious Kids is a series for children of all ages. If you have a question you’d like an expert to answer, send it to ...

A study of fossil teeth from China shows early mammals got bigger before their diets became specialized after the ...

An analysis of fossil teeth from mammals that lived in China following the most recent major mass extinction suggests size came before both shape and function as diets diversified.

Tiny fossil teeth from Alaska are changing how scientists view mammal life and migration in the ancient Arctic.

And in Indianapolis, a city councillor who had voted to expand AI infrastructure woke to thirteen gunshots fired into his ...

South Africa's Cape Floristic Region hides a leopard so unlike its African relatives that scientists now question whether it ...

The US slapped a bald eagle on its official seal back in 1782. Did we pick the right mascot? With 250 years of perspective, experts pick the true Most American Animal.