Sentences with phrase «evolutionary ancestors»

This regression is possible because we retain the genes of our primitive evolutionary ancestors, and silencing of only a few hundred genes may cause a human cell to resemble, genetically, bacteria or fungi.

Our evolutionary ancestors were probably able to break it down with bigger, stronger teeth, Anderson says.

One group is believed to represent early, fully modern humans (Homo sapiens), our immediate evolutionary ancestors.

Details of an organism's embryonic development often reveal traits carried by its evolutionary ancestors; consider, for instance, how human embryos initially develop gill - like slits and a tail.

Hominins are a group of species that includes modern humans, Homo sapiens, and our closest evolutionary ancestors.

For instance, in the human genome we still see the remnants of the large olfactory receptor gene family that gave our evolutionary ancestors a keen sense of smell, even though humans no longer rely on them.

Subsequent finds have pushed back the dates of humans» evolutionary ancestors, and of stone tools, raising questions about who first made that cognitive leap.

Which probably means that when the ancient evolutionary ancestors to white - tailed deer traveled from Eurasia across the Bering Land Bridge to North America in the Miocene, some 4.2 to 5.7 million years ago — malaria came along for the ride.

«If you think about our evolutionary ancestors, you could imagine some kind of singing ritual to bond groups together very quickly so they could then take part in some sort of collective activity like hunting,» Pearce says.

Although the precise function of acidocalcisomes is not understood, Docampo says their discovery implies that organelles may have been in cells before our evolutionary ancestors and those of today's bacteria diverged.

With activities ranging from chasing monkeys in jungles and constructing cities to exploring the lives of our evolutionary ancestors to examining what people actually do across the globe, Fuentes is interested in both the big questions and the small details of what makes humans and our closest relatives tick.

You think our evolutionary ancestors dealt with children up all hours of the night whenever they wanted to be?

The technology belongs to our evolutionary ancestors and has allowed humans to thrive and develop the breathtaking array of babywearing cultures seen around the world.

We are apes, yes, but the creatures we call «monkeys» which exist in the world right now are not our actual evolutionary ancestor.

The molecular analysis confirms that all Laparocerus weevils have a common evolutionary ancestor (monophyly), but could not clarify whether that ancient founding species arrived from southern Europe or northwestern Africa.

Chimpanzees are our closest living relative, meaning we also share a very important evolutionary ancestor.

Wolves are not dogs, and dogs are not wolves, even though they share the same evolutionary ancestor.

I don't doubt that the Piltdown hoaxer truly believed that men and primates are descended from a common evolutionary ancestor.

Not exact matches

Also, evolutionary theory does state animals sharing a certain characteristic can possess a similarity without sharing an immediate common ancestor like a bird and bat wing.

Virus interaction with the DNA of creatures can track their evolutionary progress and confirm what common ancestors they have.

[1] Our world is not at the centre of the universe; history starts fifteen thousand million years ago with the Big Bang, we human beings are the result of an evolutionary process, and we share a common ancestor with the other primates.

In the old view all the ancestors of present - day man had been true men, but in the evolutionary picture man's original ancestors were not men at all, and it became impossible to point to a time when true men first appeared and why.

In the first place, Whitehead takes an evolutionary view of experience, reminding us that our ordinary, waking consciousness was once highly extraordinary among our primate ancestors.

Adopting the second view not only fits our natural intuitions of the other animals, especially the higher forms, but fits also the evolutionary scheme according to which our human traits are intensifications and elaborations of traits found in our prehuman ancestors.

Take an illustrated journey through life's history and learn about your many ancestors and evolutionary cousins.

They're counting on the genes of the peanut's wild ancestors to unlock the plant's next evolutionary stage.

Taking an evolutionary perspective, Singer points out that the human body is adapted to deal with the types of threats to which our ancestors were exposed and those include critical illness.

The results suggest that pupil mimicry might have a long evolutionary history, says Kret, because if the phenomenon is present in both humans and chimps it is possible it originally evolved in a common ancestor of the two species.

That discovery, in turn, implies that the voice area has a long evolutionary history and was probably already present in the common ancestor of macaques and humans some 20 million years ago.

Evolutionary psychologists have offered an explanation: Presumably our ancestors found it important to recall where they found their last meal or the way back to the cave.

Adaptations that gave our ancestors an evolutionary edge can cause major problems for modern humans

It's an evolutionary U-turn: a group of egg - laying lizards evolved from live - bearing ancestors, which are in turn descended from even older egg - layers

In a subsequent study, Orians and Heerwagen applied their evolutionary perspective to 35 paintings of sunsets, by such artists as Frederick Church and Martin Johnson Heade, on the theory that sunset would have been fraught with tension for our ancestors.

These include aromas produced by plants, a logical evolutionary advantage for our ancestors seeking fruits.

It defines a species as a lineage — individuals descended from a common ancestor — that maintains a distinct identity and follows a common evolutionary path through time.

The antiquity of these creatures suggests two evolutionary scenarios, the scientists say: Either eurypterids diversified quickly during the early stages of the Ordovician period (which began about 485 million years ago), or their lineage, including yet - to - be-discovered ancestors and kin, evolved more slowly and originated even further back in time during the Cambrian period — possibly during the Cambrian explosion, a period of evolutionary diversification sometimes called «life's big bang,» which began about 542 million years ago.

Harvard evolutionary biologist Daniel Lieberman has written extensively about so - called mismatch diseases — that is, diseases that arise out of our ancestors» transition from hunting and gathering to farming.

When paleobiologist Tim White of the University of California, Berkeley, and colleagues described a new human ancestor named Ardipithecus ramidus — or «Ardi» — they challenged many evolutionary assumptions.

Boyd also noted that «congruence between the evolutionary trees of lice and symbiotic bacteria can be traced to 20 - 25 mya when the lice parasitizing monkeys diverged from a common ancestor of hominid lice.»

Central to their research have been two related species of fruit flies, Drosophila simulans and D. mauritiana, which diverged from a common ancestor more than 260,000 years ago — a «blink of an eye» in evolutionary terms, Pitnick says.

Before powerful computers were available, scientists constructed evolutionary trees by noting which species share different bumps and grooves, and assessing whether those features (also called characters) were inherited from a common ancestor, or passed along to descendants.

«Humble sponges are our deepest ancestors: Dispute in evolutionary biology solved.»

While at the Max Planck Institute for Evolutionary Anthropology in Leipzig, Germany, Cagan compared DNA from the tame rats and mink at Novosibirsk, and from other domesticated species, with DNA from aggressive counterparts and wild ancestors.

The relationships between the various cancerous cells from a single person can be plotted out in much the same way as evolutionary biologists plot relationships between species: by drawing phylogenetic trees, branching diagrams that trace «descendants» back to a common ancestor.

To test this hypothesis, an international team led by evolutionary biologist Philipp Khaitovich of the Shanghai Institutes for Biological Sciences in China and the Max Planck Institute for Evolutionary Anthropology in Leipzig, Germany, set out to see how many brain - related genes implicated in schizophrenia underwent positive natural selection since humans and chimpanzees diverged from a common ancestor between 5 million and 7 millioevolutionary biologist Philipp Khaitovich of the Shanghai Institutes for Biological Sciences in China and the Max Planck Institute for Evolutionary Anthropology in Leipzig, Germany, set out to see how many brain - related genes implicated in schizophrenia underwent positive natural selection since humans and chimpanzees diverged from a common ancestor between 5 million and 7 millioEvolutionary Anthropology in Leipzig, Germany, set out to see how many brain - related genes implicated in schizophrenia underwent positive natural selection since humans and chimpanzees diverged from a common ancestor between 5 million and 7 million years ago.

All land vertebrates carry a version of the FOXP2 gene, so some of the Oxford researchers then teamed up with colleagues from the Max Planck Institute for Evolutionary Anthropology in Germany to analyze what is unique about the variant in humans and to track how the gene had evolved in our ancestors.

The long - favored view is that the last common ancestor must have been similar to a chimp, with more evolutionary change occurring subsequently on the human branch of the family.

Researchers have identified the evolutionary origins of human herpes simplex virus (HSV)-1 and -2, reporting that the former infected hominids before their evolutionary split from chimpanzees 6 million years ago while the latter jumped from ancient chimpanzees to ancestors of modern humans — Homo erectus — approximately 1.6 million years ago.

In fact, Martin argues that «the evolutionary paths taken by most modern animals, whether these are crocodilians, turtles, birds, lungfish, amphibians, earthworms, insects, crustaceans, or mammals, are connected to their burrowing ancestors.»

Researchers at the University of California, San Diego School of Medicine have identified the evolutionary origins of human herpes simplex virus (HSV)-1 and -2, reporting that the former infected hominids before their evolutionary split from chimpanzees 6 million years ago while the latter jumped from ancient chimpanzees to ancestors of modern humans — Homo erectus — approximately 1.6 million years ago.