Scientists say they’ve discovered a new member of the human family tree, revealed by a huge trove of bones in a barely accessible, pitch-dark chamber of a cave in South Africa.
The creature shows a surprising mix of human-like and more primitive characteristics — some experts called it “bizarre” and “weird.”
And the discovery presents some key mysteries: How old are the bones? And how did they get into that chamber, reachable only by a complicated pathway that includes squeezing through passages as narrow as about 7.5 inches (17.8 centimeters)?
The bones were found by a spelunker, about 30 miles (48 kilometers) northwest of Johannesburg. The site has yielded some 1,550 specimens since its discovery in 2013. The fossils represent at least 15 individuals.
Researchers named the creature Homo naledi (nah-LEH-dee). That reflects the “Homo” evolutionary group, which includes modern people and our closest extinct relatives, and the word for “star” in a local language. The find was made in the Rising Star cave system.
The creature, which evidently walked upright, represents a mix of traits. For example, the hands and feet look like Homo, but the shoulders and the small brain recall Homo’s more ape-like ancestors, the researchers said.
Lee Berger, a professor at the University of the Witwatersrand in Johannesburg who led the work, said naledi’s anatomy suggest that it arose at or near the root of the Homo group, which would make the species some 2.5 million to 2.8 million years old. The discovered bones themselves may be younger, said Berger, a U.S. citizen.
At a news conference Thursday in the Cradle of Humankind, a site near the town of Magaliesburg where the discovery was made, bones were arranged in the shape of skeleton in a glass-covered wooden case. Fragments of small skulls, an almost complete jawbone with teeth, and pieces of limbs, fingers and other bones were arrayed around the partial skeleton.
Berger handed a skull reconstruction to Deputy President Cyril Ramaphosa, who kissed it, as did other VIPs. Berger beamed throughout the unveiling.
The researchers also announced the discovery in the journal eLife.
They said they were unable to determine an age for the fossils because of unusual characteristics of the site, but that they are still trying.
Berger said researchers are not claiming that naledi was a direct ancestor of modern-day people. Rick Potts, director of the human origins program at the Smithsonian Institution’s Natural History Museum, said that without an age, “there’s no way we can judge the evolutionary significance.”
more recommended stories
Tulum to become Mexico’s first sustainable tourism zone
The municipality of Tulum will become.
Yucatan the ultimate bird-watching destination
If you are into birdwatching, Yucatán.
Man drowns in Chuburná Puerto
A construction worker from the town.
Mexico strengthens leadership as an exporter of alcoholic beverages
Mexico Sep. 21 (Notimex).- Mexico strengthened.
Cancun, an example of tourism promotion for Japan
A Quintana Roo delegation of FONATUR.
Homicides in Mexico increase 17% so far in 2018
Intentional homicides in Mexico has increased.
Expats Feel at Home in Mexico; InterNations Survey
InterNations.org recently released the results of.
Through the implementation of AMLO’s austerity plan, the government could save 132 billion pesos in 2019
As wages for high government officials.
Japanese delegation comes to Mérida to strengthen bilateral relationship
The project of the Chicxulub crater.
First house entirely made of Sargassum built by Mexican inventor in Quintana Roo
PUERTO MORELOS, Q. Roo, September 20,.