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The teeth, found in Germany, provoked one observer to suggest human history may need to be rewritten. Some experts, however, remain very skeptical. In a paper shared at the social networking site ResearchGate, Herbert Lutz and his team say they discovered “a new great ape with startling resemblances to African members of the hominin tribe.” The "plausible age” of the fossils — an upper left canine tooth and an upper right first molar — is 9.7 million years, they say. If confirmed, that would make the teeth around 6 million years older than fossils for the early-human, African ancestor Australopithecus...

A 9.7-million-year-old discovery has left a team of German scientists scratching their heads. The teeth seem to belong to a species only known to have appeared in Africa several million years later. A team of German archaeologists discovered a puzzling set of teeth in the former riverbed of the Rhine, the Museum of Natural History in Mainz announced on Wednesday. The teeth don't appear to belong to any species discovered in Europe or Asia. They most closely resemble those belonging to the early hominin skeletons of Lucy (Australopithecus afarensis) and Ardi (Ardipithecus ramidus), famously discovered in Ethiopia. But these new...

Another species has been added to the family tree of early human ancestors — and to controversies over how straight or tangled were the branches of that tree. Long before Homo erectus, Australopithecus afarensis (Lucy, more than three million years ago) and several other distant kin, scientists are reporting today, there lived a primitive hominid species in what is now Ethiopia about 5.5 million to 5.8 million years ago. That would make the newly recognizied species one of the earliest known human ancestors, perhaps one of the first to emerge after the chimpanzee and human lineages diverged from a common...

The world's oldest and most complete skeleton of a potential human ancestor -- named "Ardi," short for Ardipithecus ramidus -- has been unveiled by an international team of 47 researchers. Their unprecedented, 17-year investigation of Ardi is detailed in a special issue of the journal Science.

Probable life appearance in anterior view of Ardipithecus ramidus ("Ardi"), ARA-VP 6/500.Photograph by: Handout, Illustrations 2009, J.H. Matternes An international team of scientists unveiled Thursday the results of 15 years of study of one of the oldest known human ancestors, Ardipithecus ramidus, which they say overturns much of what we know about human evolution. And surprisingly, it's also rewriting the story of our relation to gorillas and chimpanzees, our closest living relatives, and their development as well. Yohannes Haile-Selassie, one of the authors involved in the research and the man who discovered the first pieces of the most complete...

The big news from the journal Science today is the discovery of the oldest human skeleton—a small-brained, 110-pound (50-kilogram) female of the species Ardipithecus ramidus, nicknamed "Ardi." She lived in what is now Ethiopia 4.4 million years ago, which makes her over a million years older than the famous Lucy fossil, found in the same region 35 years ago. Buried among the slew of papers about the new find is one about the creature's sex life. It makes fascinating reading, especially if you like learning why human females don't know when they are ovulating, and men lack the clacker-sized testicles...

After 15 years of rumors, researchers made public fossils from a 4.4 million-year-old human forebear they say reveals that our ancestors were more modern than scholars had assumed, widening the evolutionary gulf separating humankind from apes and chimpanzees. The highlight of the extensive fossil trove was a female skeleton a million years older than the iconic bones of Lucy, the primitive female figure that has long symbolized humankind's beginnings. An international research team led by paleoanthropologist Tim White at the University of California, Berkeley, unveiled on Thursday remains from 36 males, females and young of an ancient prehuman species called...

A treasure trove of 4.4-million-year-old fossils from the Ethiopian desert is dramatically overturning widely held ideas about the early evolution of humans and how they came to walk upright, even as it paints a remarkably detailed picture of early life in Africa, researchers reported Thursday. The centerpiece of the diverse collection of primate, animal and plant fossils is the near-complete skeleton of a human ancestor that demonstrates our earliest forebears looked nothing like a chimpanzee or other large primate, as is now commonly believed. Instead, the findings suggest that the last common ancestor of humans and primates, which existed nearly...

Humans were living and thriving on open grassland in Africa as early as 2 million years ago, making stone tools and using them to butcher zebra and other animals... All of the other earlier hominins that have been found in the geological record -- such as Ardipithecus ramidus and Australopithecus afarensis -- known as Ardi and Lucy, respectively -- lived either in dense forest or in a mosaic of woodland, shrub and grasses, says Plummer... Plummer's team first started excavating Kanjera South in the 1990s, in search of primitive toolkits consisting of hammer stones, stone cores that were struck to...

A comparison of ancient and contemporary footprints reveals that our ancestors were strolling much like we do some 3.6 million years ago, a time when they were still quite comfortable spending time in trees, according to a study which will be published in the March 22 issue of the journal PLoS ONE... Although some researchers have argued that the 4.4 million-year-old ancient human Ardipithecus ramidus ("Ardi") described in October 2009 was adept at walking on her hind legs, many disagree... Likely left by Australopithecus afarensis, the same species as "Lucy," these prints show an upright gait, but it has remained...

Did apes descend from us? Skeleton of Ardi, 1.2-metre, 50-kilogram female may hold the clue Joseph Hall Science writer It may well be the closest we will ever come to the missing link between chimps and humans and the most important anthropological find ever. In a series of studies released today by the journal Science, researchers have revealed a creature that took the first upright steps toward human beings and fundamentally changes the way we look at our earliest evolutionary ancestors. The research brings into question the belief that our most distant ancestors descended from apes. What's closer to the...

One of the most controversial proposed members of the human evolutionary family, considered an ancient ape by some skeptical scientists, is the real hominid deal, an analysis of a newly reconstructed skull base finds. By 4.4 million years ago, Ardipithecus ramidus already possessed a relatively short, broad skull base with a forward-placed opening for the spinal cord, an arrangement exclusive to ancient hominids and people today, William Kimbel of Arizona State University in Tempe reported on April 11 at the American Association of Physical Anthropologists annual meeting. Although features of the skull's floor evolved substantially in Homo species leading to...

An international research team extracted information from the fossilised teeth of three Australopithecus bahrelghazali individuals -- the first early hominins excavated at two sites in Chad. Professor Julia Lee-Thorp from Oxford University with researchers from Chad, France and the US analysed the carbon isotope ratios in the teeth and found the signature of a diet rich in foods derived from C4 plants. Professor Lee-Thorp, a specialist in isotopic analyses of fossil tooth enamel, from the Research Laboratory for Archaeology and the History of Art, said: "We found evidence suggesting that early hominins, in central Africa at least, ate a diet...

In May 2009, a remarkably well-preserved extinct primate, nicknamed “Ida,” was hailed as one of the most important fossil finds ever. It had features that some interpreted as a link between two primate body forms. At the time, ICR News suggested that its evolutionary significance was far overblown, predicting that the scientific consensus would offer retractions. Those retractions came three months later, confirming that the fossil―called Darwinius―was really just an extinct lemur variety...