Tag: "hominid" at biology news

Endurance running may be key to evolution of human body form

...s walking going to be what suddenly transforms the hominid body?" Bramble asks. "We're saying, no, walking won't do that, but running will."...

How running made us human

...s walking going to be what suddenly transforms the hominid body?" he asks. "We're saying, no, walking won't do that, but running will." Walking cannot explain most of the changes in body form that distinguish Homo from Australopithecus, which when compared with Homo had short legs, long forearms, high pe...

Anthropologists find 4.5 million-year-old hominid fossils in Ethiopia

...king in Ethiopia believe Ardipithecus is the first hominid genus -- that is, human ancestors who lived just a...s from Gona and elsewhere suggest that the ancient hominid walked on two feet and had diamond-shaped upper canines, not the "v"-shaped ones chimps use to chomp...

Scientists find missing link between whale and its closest relative, the hippo

...an ancestors in the African republic of Chad. Most hominid fossils earlier than about 2 million years ago are found in association with hippo fossils, implying that they lived in the same biotopes and that hippos later became a source of food for our distant ancestors. Hippos first developed in Africa 16 mil...

Hominids lose control

...rious mutations have apparently accumulated in the hominid lineages, racking up an estimated additional 140,000 harmful mutations since humans and chimps diverged, mutations that have been selectively eliminated in mouse and rat. The authors compared the conservation of DNA sequences making up the bulk of g...

'Man the Hunter' theory is debunked in new book

...tprints and on environmental evidence, both of our hominid ancestors and the predators that coexisted with them." Since the process of human evolution is so long and varied, Sussman and Hart decided to focus their research on one specific species, Australopithecus afarensis, which lived between five million...

Gorilla diet tips -- Have we 'evolved to eat mush'?

...eful clues to the dietary adaptations of our early hominid ancestors. Increased meat consumption triggered genetic changes that allowed early humans to eat more fatty foods without developing heart disease, according to work by Stanford and gerontologist Caleb Finch of USC. Today, Peter Lucas of George Wash...

DOE JGI sequences DNA from extinct cave bear

... humans and the extinct Neandertal--the only other hominid species that we have to compare with humans. Our n...ccess and evaluate genomic information about other hominid species, Neandertals in particular, as they represent probably our closest prehistoric relative." An...

Human brain is still evolving

...lved most rapidly in the last six million years of hominid evolution, after the divergence of humans and chimpanzees." In order to identify sequence changes that occurred in Microcephalin and ASPM in the evolutionary lineage leading to humans, Lahn and his colleagues took the following approach: They determi...

'Perception' gene tracked humanity's evolution, scientists say

... consensus among evolutionary anthropologists that hominid divergence from the other great apes was fueled not by the origin of new genes, but by the quickening (or slowing) of the expression of existing genes. Hahn and his colleagues at Duke University, University College London and Medical University of V...

Wide range of topics covered by new research units

...lated to geodynamics, sedimentology, paleontology, hominid research and atmosphere research. Research cannot stand still. This applies too if tool machines breakdown unexpectedly and production stops. The aim of the Research Unit "Targeted Preventive Maintenance by Automated Status Observation" is to develop...

There's something fishy about human brain evolution

...rowth of the human brain. Instead, imagine ancient hominid children chasing frogs. Not for fun, but for food....l making to explain the massive expansion of early hominid brains. But this is a Catch-22. Something had to start the process of brain expansion and I think it...

Early humans on the menu

...tprints and on environmental evidence, both of our hominid ancestors and the predators that coexisted with them." Since the process of human evolution is so long and varied, Sussman and his co-author, Donna L. Hart, decided to focus their research on one specific species, Australopithecus afarensis, which li...

Friedemann Schrenk receives the 2006 Communicator Award

... Homo, with many of its teeth intact, of the early hominid Homo rudolfensis. He is engaged in a long-term fie...ren the opportunity to get their hands on casts of hominid finds which are available as visual aids. This allows the school children to obtain information abou...

Hominid fossils from Ethiopia link ape-men to more distant human ancestors

...grative biology and one of the team's leaders. The hominid Australopithecus has often been called an ape-man ...rica 82 years ago by Raymond Dart, fossils of this hominid have been found all over eastern Africa spanning a 3-million-year time period. Seven separate specie...

Human and chimp genomes reveal new twist on origin of species

...f 6.5-7.4 million years based on the famous Toumaï hominid fossil (Sahelanthropus tchadensis), which has features thought to be distinctive to the human lineage. "It is possible that the Toumaï fossil is more recent than previously thought," said Nick Patterson, a senior research scientist and statistician ...

Scientists scuttle claims that 'Hobbit' fossil from Flores, Indonesia, is a new hominid

...n associated with short stature. The proposed new hominid species is based primarily on a specimen known as ...y of LB1, which is smaller than in any other known hominid younger than 3.0 million years old, is demonstrably far too small to have been derived from Homo ere...

Use of stone hammers sheds light on geographic patterns of chimpanzee tool use

... our best model for understanding the evolution of hominid cultural diversity. As such, the new finding promises to both benefit research and inform the conservation of our closest living relative....

Ancient raptors likely feasted on early man, study suggests

...obably the most written-about, studied and handled hominid skull ever," he said. "But almost no one had really bothered to look at skulls discarded from eagle nests. It's not that the damage was overlooked in the Taung skull, it's just that we didn't have the link to make sense of it." He went on to say tha...

Anthropologist challenges species identification of ancient child skeleton found in Ethiopia

...nd Tattersall found there is more than one kind of hominid represented in the Hadar material. "Since the chewing surfaces of the Dikika child's teeth have not yet been exposed, one cannot compare it with any of the Hadar specimens or with the type specimen of A. afarensis from Laetoli," Schwarz explained. "...

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