Among the earliest fossils, one marine creature has long baffled scientists.
Tree shrews are a small mammal species native to southeast Asia.
The ancient skull fragment is "a unique opportunity to learn more about the biology and diversity of our ancestors and their relatives and, ultimately, about their evolution."
“This was one strange-looking fish."
The organisms have been named after former President Barack Obama and renowned British naturalist Sir David Attenborough.
Without amber, it’s unlikely that scientists would have ever discovered this long-extinct creature.
This genetic variant may help explain different health disparities between those of African and European decent.
The findings could help to shine a light on the evolutionary history of mammals.
The "second brain" may actually have been the "first brain."
This was from long before the dinosaurs.
The asteroid and its after-effects ushered in a great extinction event that wiped out some three quarters of all plant and animal life, including dinosaurs and most birds.
Around 550 million to 540 million years ago, there was a remarkable explosion in the diversity and complexity of animal life on Earth.
Early dinosaurs were at the mercy of weather patterns unfolding across the supercontinent Pangaea.
Scientists think the dinosaurs are showing off their genetic make-up.
Even among the giant viruses, these are weird.
“There are a lot of members of the church who aren’t on board with evolution."
Magic mushrooms' hallucinogenic effects might keep insects away, but it doesn't stop humans.