Sentences with phrase «old fossil shows»

A big analysis of the 4.4 - million - year - old fossil shows that humans left the trees before leaving the forest and getting much smarter.

«500 million - year - old fossils show how extinct organisms attacked their prey: Missouri - based scientists unlock clues to predatory behavior, a significant factor in evolution.»

August 9, 2017 First winged mammals from the Jurassic period discovered UChicago paleontologists discover two 160 million - year - old fossils showing that early mammals in the Jurassic Period evolved to glide and live in trees.

Not exact matches

Lie4Him, Schweitzer, one of the first scientists to use the tools of modern cell biology to study dinosaurs, has upended the conventional wisdom by showing that some rock - hard fossils tens of millions of years old may have remnants of soft tissues hidden away in their interiors.

A 195,000 year old fossil from the Omo 1 site in Ethiopia shows the beginnings of the skull changes that we associate with modern people, including a rounded skull case and possibly a projecting chin.

If we completely ignore all the evidence we have that supports evolution, just pretend fossils don't exist, just pretend the Earth is only 6k years old and we were created by a higher being, where does it show it was the Christian god character that did it?

A further interesting and little publicized fact: scientific analysis of some of the oldest human fossils ever found on the planet has shown that breast milk was the principal form of food for the first three to four years of life [vi].

Rare remains show a primitive shrimp - like creature apparently caring for four juveniles — the oldest example of parental care in the fossil record

But detailed study of the newly discovered fossil's teeth, jaws and skull shows it to be the oldest member yet found of the order Proboscidea, of which elephants are the only living survivors.

«If that is true, then if we look at older fossil assemblages — say 1 to 1.6 billion years old — the fossilized eukaryote will show no evidence of predation,» Porter said.

«World's oldest plant - like fossils show multicellular life appeared earlier than thought.»

This finger bone (four sides shown) represents the oldest directly dated human fossil found outside of Africa and the Levant.

More recent fossil discoveries in the same region, including the iconic 3.7 million year old Laetoli footprints from Tanzania which show human - like feet and upright locomotion, have cemented the idea that hominins (early members of the human lineage) not only originated in Africa but remained isolated there for several million years before dispersing to Europe and Asia.

A handful of fossil species dating from five million to 28 million years old, mostly before chimpanzees split from hominins, showed signs of upright posture and bipedalism, but «the evidence has been pretty flakey,» Wood says.

But this past year Guillermo Rougier, a paleontologist at the American Museum of Natural History, described turtle fossils from Argentina (including the one shown here) that were also 210 million years old — indicating that turtles had already spread over the planet by then.

In a new paper, published in Scientific Reports, an international team of researchers has analysed fossils and DNA from living and recently extinct species to show that conservation sensitive Australasian marsupials are much older than previously thought.

The new research, published this week in Proceedings of the National Academy of Sciences, shows that structures once thought to be Earth's oldest microfossils do not compare with younger fossil candidates but have, instead, the character of peculiarly shaped minerals.

Now, researchers have shown that such soft tissue can fossilize in the right conditions and described a complex brain from multiple 520 - million - year - old fossils.

A modern peach pit would have a recent radiocarbon date, but radiocarbon analysis of the fossil peaches showed them to be older than the limit of radiocarbon dating, which is about 50,000 years.

Now, some of France's reactors are showing wrinkles — France's oldest reactor, Fessenheim 1, started operations in 1977 — and officials need to decide whether to invest in costly safety upgrades to keep them operating or to decommission them, another expensive prospect that leaves open the possibility that fossil fuels may rise to meet the shortfall.

The team also found DNA from a form of marine alga in 9300 - year - old sediments, though the alga doesn't show up in the fossil record until 2500 years ago, says molecular paleoecologist Marco Coolen of the Woods Hole Oceanographic Institution in Massachusetts and an author of the Black Sea paper.

The team considered more than 5500 fossils of beetles collected at more than 200 sites worldwide (including the 45 - million - year - old fossil of a weevil unearthed in Colorado, shown).

A modern brain in an ancient body: A reconstruction of the brain of the 520 million year - old fossil Fuxianhuia protensa (left), which has a very simple body shape, yet shows unexpected similarity to the complex brain of a modern crustacean, such as the land hermit crab (Coenobita clypeatus) pictured on the right.

The discovery was disproved in 1953, when advances in fossil analysis showed definitively that the bones were less than 1000 years old, comprised of human and orangutan remains, and had been artificially stained and filed to imitate aging.

Curious to see how stable and long - lasting Gc - CS might be, Varki bought a relatively inexpensive 50,000 - year - old cave bear fossil at a public fossil show and took it back to the lab.

«Glaciers in higher colder mountainous regions will be slower to melt even as temps rise, the lower tundra areas will respond more quickly to such changes and this is shown by the quicker responses in tree line to the lesser warming periods like the MWP at ground level further north from him, and not just fossil remains but old farming settlements uncovered, and so on.»

The point here is not that Gelbspan appears to have put out misinformation about his collective work back in 2004, it is that his words have huge influence right up to the present time, such as the only months - old «fossil fuel industry misinformation» research paper written by an impressionable young college student, or the days - old suggestion by one of his Facebook Friends that he should get a guest appearance on CNBC's Rachel Maddow show.

Basically this shows us that the extra CO2 is composed of «old» carbon and «new» oxygen, that is to say it is clearly the product of fossil fuel combustion.

The C14 deficit (referenced via tree samples back to pre-atomic bomb days) shows that the emitted carbon is very old (probably more than 50,000 years old given the 5600 year half life of C14), and that age is hard to attribute to something other than fossil fuels.

Now, some of France's reactors are showing wrinkles — France's oldest reactor, Fessenheim 1, started operations in 1977 — and officials need to decide whether to invest in costly safety upgrades to keep them operating or to decommission them, another expensive prospect that leaves open the possibility that fossil fuels may rise to meet the shortfall.