The asteroid impact that caused dinosaurs to go extinct also destroyed global forests, according to a new study. This illustration shows one of the few ground-dwelling birds that survived the toxic environment and mass extinction.
The remains of a butchered rhinoceros are helping researchers to date when early humans reached the Philippines. They found a 75% complete skeleton of a rhinoceros that was clearly butchered, with 13 of its bones displaying cut marks and areas where bone was struck to release marrow, at the Kalinga archaeological site on the island of Luzon.
This is just one of 26 individuals found at the site of a fifth-century massacre on the Swedish island of Öland. This adolescent was found lying on his side, which suggests a slower death. Other skeletons found in the homes and streets of the ringfort at Sandby borg show signs of sudden death by blows to the head.
The skeleton of a young woman and her fetus were found in a brick coffin dated to medieval Italy. Her skull shows an example of neurosurgery, and her child was extruded after death in a rare "coffin birth."
This portion of a whale skull was found at the Calaveras Dam construction site in California, along with at least 19 others. Some of the pieces measure 3 feet long.
A Stone Age cow skull shows trepanation, a hole in the cranium that was created by humans as as surgical intervention or experiment.
On the left is a fossilized skull of our hominin ancestor Homo heidelbergensis, who lived 200,000 to 600,000 years ago. On the right is a modern human skull. Hominins had pronounced brow ridges, but modern humans evolved mobile eyebrows as their face shape became smaller.
On the left is a 13,000-year-old footprint as found in the sediment on Calvert Island, off the Canadian Pacific coast. On the right is a digitally enhanced image, showing details of the footprint.
A central platform at Star Carr in North Yorkshire, England, was excavated by a research team studying past climate change events at the Middle Stone Age site. The Star Carr site is home to the oldest evidence of carpentry in Europe and of built structures in Britain.
Researchers have been studying Archaeopteryx fossils for 150 years, but new X-ray data reveal that the bird-like dinosaur may have been an "active flyer."
This wall with paintings is in the La Pasiega Cave in Spain. The ladder shape of red horizontal and vertical lines is more than 64,000 years old and was made by Neanderthals.
These perforated shells were found in Spain's Cueva de los Aviones sea cave and date to between 115,000 and 120,000 years ago. Researchers believe these served as body ornamentation for Neanderthals.
The earliest modern human fossil ever found outside of Africa has been recovered in Israel. This suggests that modern humans left Africa at least 50,000 years earlier than previously believed. The upper jawbone, including several teeth, was recovered in a prehistoric cave site.
This is an excavated structure at the northern edge of the Grand Plaza at Teposcolula-Yucundaa in Oaxaca, Mexico. Researchers investigated a "pestilence" cemetery associated with a devastating 1545-1550 epidemic. New analysis suggests that salmonella caused a typhoid fever epidemic.
Standing about 4 feet tall, early human ancestor Paranthropus boisei had a small brain and a wide, dish-like face. It is most well-known for having big teeth and hefty chewing muscles.