Evolution

A groundbreaking study has traced the 66-million-year history of primates to overturn conventional thought that our ancestors came from tropical forests. The earliest members of our family tree, scientists say, were actually cold-climate survivors.

The preserved lung of an 18-year-old Swiss man has been used to create the full genome of the 1918 "Spanish flu," the first complete influenza A genome with a precise date from Europe, offering insights into the pandemic that claimed up to 100 million lives.

Tracing the potato’s deep ancestry, researchers have revealed a surprising origin story: modern potatoes emerged from natural interbreeding between tomato relatives and a wild-potato-like species about nine million years ago.

Millenia ago communities went to great lengths to hunt wild boars, and not just for survival. Archaeologists recently uncovered 19 wild boar skulls. The skulls bore butchery marks, hinting at a feast; however, the real mystery was their origin.

Back in 2010, one bold chimp at a sanctuary in Zambia started a curious trend: she stuck a blade of grass in her ear ... and left it there. No reason. Then more chimps started copying her, and blades of grass appeared in other parts of their body.

Humans have been getting infected by ancient bacteria and viruses for at least 37,000 years. Now, for the first time, pathogen DNA has uncovered a pivotal disease "turning point" that happened 6,500 years ago, which would forever change our lives.

Using new radiocarbon dating on footprints preserved in the gypsum-rich ground in White Sands, researchers have confirmed that humans roamed North America 23,000 years ago. The finding solves a long debate questioning the age of these footprints.

The evolutionary ladder is meant to be climbed one rung at a time with an organism shedding some traits and gaining others on the way up. However, in a very surprising twist, some tomatoes on the Galapagos islands are inching back down the ladder.

Killer whales have joined the rare club of animal species that craft tools out of nature and use them to their advantage. For the first time, they've been observed making a brush of sorts out of kelp and then using it on each other.

The world's oldest human fingerprint has been discovered at an archaeological site in Spain. The fingerprint was dated at 43,000 years old and is believed to have come from a Neanderthal.

For the first time, scientists have pieced together the diverse diet of a sauropod species, using advanced technology to assess the fossilized stomach contents that make up the dinosaur's last meal, which took place around 95 million years ago.

It's not a simple case of "follow the leader" when it comes to baboons on foot. Researchers have made a surprising discovery on why they appear to move in an orderly line, and it's something that can help us better understand human behavior, too.