An international team
of paleoanthropologists, led by Professor Madelaine Böhme of the University of Tübingen, Germany, has analyzed 7.2 million - year - old...
But a pair
of paleoanthropologists from the University of Zurich have now called Lucy's femininity into question.
After originating in Africa possibly around 300,000 years ago and inhabiting areas close to the Middle East (SN: 7/8/17, p. 6), H. sapiens likely first reached the Middle East more than 200,000 years ago, proposes an international team
of paleoanthropologists led by Quam, Israel Hershkovitz of Tel Aviv University and Gerhard Weber of the University of Vienna.
Now, however, a trio
of paleoanthropologists — Yonatan Sahle and Sireen El Zaatari of the University of Tübingen in Germany and Tim White of the University of California, Berkeley — have shown that crocodile teeth can also leave V - shaped cuts in mammal bones that are indistinguishable from stone - tool cuts.
To look at the teeth and jaws of the hominins at Dmanisi is to see a mouthful of pain, says Ann Margvelashvili, a postdoc in the lab
of paleoanthropologist Marcia Ponce de León at the University of Zurich in Switzerland and the Georgian National Museum in Tbilisi.
The first bones were found by Matthew Berger, the young son
of paleoanthropologist Lee Berger, who joined his father at press events touting the find.
Eric Roth has written the script, based on the true story
of paleoanthropologist Richard Leakey and his battle with the ivory poachers who threatened the African elephant population.
Not exact matches
Paleoanthropologists have disproven the basic premise that the modern human digestive system is the same as that
of early humans, but research also suggests that a diet
of unprocessed, hormone - free meat sources coupled with fresh fruits and vegetables has clear benefits.
«This is a real lineage, and we have to work out what the hell it looks like,» says
paleoanthropologist Bernard Wood
of George Washington University in Washington.
Crocodile bites damage animal bones in virtually the same ways that stone tools do, say
paleoanthropologist Yonatan Sahle
of the University
of Tübingen in Germany and his colleagues.
But Stanley Ambrose, a
paleoanthropologist at the University
of Illinois at Urbana - Champaign, dismisses Duarte's idea.
If the new dates for the Spanish cave art are confirmed, they could indicate that Neandertals and H. sapiens exchanged artistic traditions earlier than previously thought, says
paleoanthropologist Chris Stringer
of the Natural History Museum in London, who was not involved in the studies.
«What I found fascinating is the interdigitization
of the Neandertals and Denisovans — that both groups were in and out
of the cave,» says
paleoanthropologist Leslie Aiello
of the Wenner - Gren Foundation in New York City.
It also shows that these ancient «populations moved around a lot and intermixed,» says
paleoanthropologist Erik Trinkaus
of Washington University in St. Louis in Missouri, who is not a co-author.
Tim White, a
paleoanthropologist not connected to the project, says the findings were published too early, with too much left unknown — including the age
of the fossils and whether concrete evidence for the intentional placement
of the dead exists.
In September, University
of the Witwatersrand
paleoanthropologist Lee Berger and his team described the fossils — discovered by spelunkers in 2013 — in the journal eLife.
But A. deyiremeda and its neighbors do indicate that hominins with ape - size brains had developed successful adaptations to different environments, says the study's lead author Yohannes Haile - Selassie, a
paleoanthropologist at the Cleveland Museum
of Natural History.
To create a foot skeleton for Lucy, I essentially executed a 3 - D version
of a graphic reconstruction done earlier by Berkeley
paleoanthropologist Tim White and the University
of Tokyo's Gen Suwa, scaled to Lucy's size using her preserved foot bones.
The partial jaw
of new hominin Australopithecus deyiremeda (top) was found about 20 miles from the famous «Lucy» fossils by
paleoanthropologist Yohannes Haile - Selassie.
A lengthy investigation by Science reveals allegations
of sexual misconduct against noted
paleoanthropologist Brian Richmond, as well as the field's response.
Manuel Domínguez - Rodrigo, a
paleoanthropologist at the Complutense University
of Madrid, says that in his own analysis
of the Dikika bones, he found micro-abrasions along the bones» surface and intersecting striations within grooves, textures that suggest neither crocodile bites nor stone - tool cuts, but instead damage by animal trampling.
Details
of the tumor confirmation, announced by an international research team led by Penn Museum Associate Curator and
Paleoanthropologist Janet Monge, is available in a research paper, «Fibrous dysplasia in a 120,000 + year old Neandertal from Krapina, Croatia,» in the online scientific journal PLOS ONE.
An allegation against Richmond, the curator
of human origins at the American Museum
of Natural History (AMNH) in New York City, inspired a cascade
of other allegations about him and motivated several senior
paleoanthropologists to do battle against sexual harassment in their field.
Curtis Marean, a
paleoanthropologist at Arizona State University's Institute
of Human Origins in Tempe, and a co-author on the 2010 paper, and his graduate student Jacob Harris, say in an email to Science that «a reassignment
of agency based on nothing more than another look by the experts is not appropriate».
Although the find was remarkable, it wasn't until this year that a team led by French
paleoanthropologist Michel Brunet used CT scans to create a virtual model
of the skull, revealing precise measurements
of the size
of the brain cavity and information about the angle at which the spinal cord exits the brain.
None
of us expected that,» says
paleoanthropologist Michael Westaway
of Griffith University, Nathan, in Australia, a co-author on the Willerslev paper.
Drs. Harmand and Lewis co-directed the fieldwork and analysis
of the findings as part
of an international, multidisciplinary team
of archaeologists, paleontologists, geologists,
paleoanthropologists; there are 19 other co-authors on the paper.
Venerable
paleoanthropologist Tattersall opens his latest book recalling the time when, as a young researcher in the»70s, he traveled to the Comoros Islands to study lemurs and instead found himself in the midst
of a coup.
Those same scanners also make it possible for
paleoanthropologists to look inside the fossils
of ancient hominids and see things that until now have been shrouded in mystery.
Dr. Lewis wanted to be a
paleoanthropologist working in East Africa since he was 13, when he read a book about the famous Lucy skeleton
of Australopithecus afarensis.
Members
of a team led by
paleoanthropologist Isaiah Nengo estimated the fossil's age by assessing radioactive forms
of the element argon in surrounding rock, which decay at a known rate.
At roughly 320,000 years old, the excavated Middle Stone Age tools are the oldest
of their kind,
paleoanthropologist Rick Potts and colleagues report in one
of the new papers.
Stunning fossils
of a claimed new human species have stirred up great excitement among
paleoanthropologists, but some researchers have also flinched at the hype accompanying the unconventional excavation.
Terry Harrison, a
paleoanthropologist at New York University, questioned in Nature whether Ardi was even a member
of the human lineage or just an ape «among the tangled branches»
of a much larger bush.
«Sediba is too late to sit on the lineage,» says
paleoanthropologist Tim White
of the University
of California, Berkeley.
When
paleoanthropologist Lee Berger unearthed a fossil near Johannesburg, South Africa, it seemed to be a jumble
of parts: a braincase similar in size to that
of an Australopithecus africanus, a Homo erectus pelvis, and the arms
of a Miocene ape.
Despite the age and unprecedented completeness
of the new ape skull, no reported tooth or skull features clearly place N. alesi close to the origins
of living apes and humans, says
paleoanthropologist David Begun
of the University
of Toronto.
«More experimental work on bone damage caused by big, hungry crocs is also critical,» says coauthor Tim White, a
paleoanthropologist at the University
of California, Berkeley.
In October 2004
paleoanthropologists announced the discovery
of a new human species that lived as recently as 17,000 years ago on the Indonesian island
of Flores.
Paleoanthropologist John Hawks
of the University
of Wisconsin - Madison, who was present when Henneberg made his case, notes on his blog that Brown's CT scan «has rather poor resolution (typical
of medical CT scans), and cuts through the lingual cusps
of the lower M1, not the buccal (cheek) cusps which appear to have been most affected by the irregularity.»
Donald Johanson, the
paleoanthropologist who found Lucy more than 40 years ago, noted that other fossils discovered nearby also appear damaged, possibly from a stampede, or from the weight
of sediment and other material collecting over millennia.
Intermixing does not surprise
paleoanthropologists who have long argued on the basis
of fossils that archaic humans, such as the Neandertals in Eurasia and Homo erectus in East Asia, mated with early moderns and can be counted among our ancestors — the so - called multiregional evolution theory
of modern human origins.
Now there are 25,» says Ian Tattersall, a
paleoanthropologist and influential author
of books such as Becoming Human.
«It confirms this idea that our lineage, Homo, is a response to climate change,» says Brian Villmoare, a
paleoanthropologist at the University
of Nevada, Las Vegas.
«Dmanisi was a good place to die,» says Martha Tappen, a
paleoanthropologist at the University
of Minnesota and part
of the Dmanisi team since 2001.
Paleoanthropologist Peter Brown
of the University
of New England in Armidale, Australia, who led the initial analysis
of LB1, says his own photograph
of the occlusal (chewing) surface «shows there is no filling.
Most
paleoanthropologists believe that the hobbit belongs to a new species
of human, Homo floresiensis.
The inside surface
of Jebel Irhoud braincases, which were long and low, has a distinctive shape that perhaps represents an early evolutionary step toward later humans» rounded skullcaps, suggests
paleoanthropologist Chris Stringer.
Sahle's group expanded on research previously conducted by
paleoanthropologist Jackson Njau
of Indiana University Bloomington.
Studies
of DNA from living Africans, and from the 2,000 - year - old African boy, so far indicate that at least several branches
of Homo — some not yet identified by fossils — existed in Africa roughly 300,000 years ago, says
paleoanthropologist John Hawks
of the University
of Wisconsin — Madison, a member
of the H. naledi team who refrains from classifying Jebel Irhoud individuals as H. sapiens.