The first drawing of history: a hashtag found in South Africa

A 73,000-year-old red cross motif was drawn on a silicone flake, which forms when sand and gravel are glued together and found in a cave in South Africa.

A suite of pottery from the Middle Neolithic including typical Danilo items, figulines and rhytes used to contain meat, milk, cheese and yoghurt.

These four dinosaurs show the evolution of alvarezsaurs. From left to right, Haplocheirus, Xiyunykus, Bannykus and Shuvuuia reveal lengthening of the jaws, reduction of teeth and changes in the hand and arm.

Eorhynchochelys sinensis is a small turtle that lived 228 million years ago. There was a beak without teeth, but no shell.

The bones of the leg of a 7 year old child, found in an ancient Roman cemetery, show deformities and deformities associated with rickets.

The famous statues of Easter Island, called moai, were originally whole bodies that were partially covered over time. They represent important Rapa Nui ancestors and were carved after the creation of a population on the island 900 years ago.

The researchers are at the excavation site of Aubrey Hole 7, where cremated human remains were found at Stonehenge for study. New research suggests that 40% of the 25 people buried at Stonehenge were not there – but they probably carried stones from West Wales and contributed to its construction.

The recently discovered armored dinosaur fossil Akainacephalus johnsoni was found in southern Utah.

The foot is a part of a skeleton part of a skeleton aged 3.32 million years of an Australopithecus afarensis nicknamed Selam.

According to a new study, the impact of the asteroid that caused the extinction of the dinosaurs also destroyed the world's forests. This illustration shows one of the few terrestrial birds that survived the toxic environment and massive extinction.

The remains of a rhinoceros shot help researchers to date when the first humans reached the Philippines. They found a complete skeleton of 75% rhinoceros that was clearly cut up, 13 of its bones showing cut marks and areas where bones were struck to release marrow, at the archeological site of Kalinga, on the site. Luzon Island.

This is just one of 26 people found on the site of a fifth century massacre on the Swedish island of Öland. This teenager was found lying on his side, suggesting a slower death. Other skeletons found in the homes and streets of the town of Sandby-Borg show signs of sudden death in the head.

The skeleton of a young woman and her fetus was found in a brick casket dating back to medieval Italy. His skull shows an example of neurosurgery and his child was expelled after death in a rare "coffin birth".

This portion of whale skull was found at the Calaveras Dam construction site in California, with at least 19 others. Some pieces are 3 feet long.

A stone age cow skull shows a trepanation, a hole in the skull created by humans as a surgical procedure or an 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, a modern human skull. Hominins had sharp brow ridges, but modern humans developed mobile eyebrows when their face shape became smaller.

To the left is a 13,000-year-old footprint found in the sediments of Calvert Island, off the Canadian Pacific coast. On the right, an enhanced digital image displaying the details of the fingerprint.

A team of researchers studied a central platform at Star Carr in North Yorkshire, England. The Star Carr site is home to the oldest carpentry indexes in Europe and structures built in Britain.

Researchers have been studying Archeopteryx fossils for 150 years, but new radiographic data reveal that the bird-like dinosaur may have been an "active flyer".

This wall with paintings is in the cave of La Pasiega in Spain. The scale form of the horizontal and vertical red lines is over 64,000 years old and was made by the Neanderthals.

These perforated shells were found in the Spanish cave of Cueva de los Aviones and date from 115,000 to 120,000 years ago. The researchers believe that these were used to ornament the body of Neanderthals.

The first modern human fossil ever found outside Africa has been found in Israel. This suggests that modern men have left Africa at least 50,000 years earlier than previously thought. The upper jaw, with several teeth, was found in a prehistoric cave.

It is an excavated structure at the north end of the Grand Plaza at Teposcolula-Yucundaa in Oaxaca, Mexico. The researchers studied a "plague" cemetery associated with a devastating epidemic of 1545-1550. A new analysis suggests that salmonella caused an epidemic of typhoid fever.

Standing about 4 feet tall, Paranthropus boisei, a primitive human ancestor, had a small brain and a broad, flat face. He is well known for his big teeth and chewing muscles.