Sentences with phrase «known evolutionary history»

Not exact matches

Second, most evolutionary biologists agree that you can not know evolution without a basic foundation in history, geology, biology and physics.

Oh, there have been alternatives out there for as long as we know (although it's dumb to talk about evolutionary changes even in terms of recorded history).

According to Eckmann, «The special thing about these processes is that they involve known molecules with very long evolutionary histories, previously receiving attention as suppressors of tumour formation within the context of normal cell division.

But when we showed the results for two cases from 2008 involving male fetuses to specialists on the Y chromosome's evolutionary history, it became clear that something was awry: the combinations of SNP variants reported were inconsistent with the Y chromosome's known ancestry (see «Implausible chromosomes»).

Christian Rabeling, an evolutionary biologist at Arizona State University in Tempe, says that although the study furthers our understanding the evolutionary history of the Formica genus, the family tree included less than 10 % of the 175 known species, a major limitation.

«This is a serious health issue but very little is known about their evolutionary history and why plants have evolved these allergens.»

Nobody knows why an invertebrate should need such a gene, but the fact that its various coding regions are organised in a subtly different way from those of all other known globin genes is forcing a rethink about the evolutionary history of globin genes.

As any school child will tell you, the largest known animal now and in evolutionary history is the blue whale.

Ferns have survived no less than four mass extinctions and during their extremely long evolutionary history, the dominant fern groups have changed repeatedly.»

«Looking at the evolutionary tree, and knowing something about evolution and Earth history, we predicted there would be a The 4 - to 9 - foot - long creature had fins, which held limblike bones forming a shoulder, elbow, and wrist that could do a push - up; broad ribs and scales; and a neck that allowed the animal to swivel its head.

These differences have been known for some time, but only now we realize that flounders with different spawning behaviors are two species with distinct evolutionary histories,» describes Momigliano.

Those who study dinosaurs are more eager to know the life histories of the beasts: what particular adaptations they had, how they ate, how they raised their young, and what evolutionary relationships they might have had with one another and with modern - day animals.

Kearney has devoted her academic and professional work to the study of biodiversity, evolutionary biology and evolutionary history of organisms, a field known as phylogenetics.

While the self - guided mutation element in the archaeal virus clearly resembled the known bacterial elements in many respects, the researchers found that it has a divergent evolutionary history.

As scientists went deeper into evolutionary history and closer to the base of the tree of life, the harder it became to know how closely related organisms are.

The whites of the eyes help others discern the direction of an individual's gaze, which is important for social interaction, but no one knows when in evolutionary history this feature appeared.

Nobody knows how the symbion phylum arose in evolutionary history, or where it fits into the evolutionary tree / thicket / web (you can choose your own metaphor).

The evolutionary history of M. persicae is marked with speciation events and the tobacco specialist subspecies M. persicae nicotianae, known as the tobacco aphid, is an example.

To fight back we must know our enemies in fine detail, not only the tools of infection that they have developed but also their recent and distant evolutionary history.

You know, the stress response is something that keeps us alive and kept us alive throughout our evolutionary history.

I assume that means my brain doesn't know how to handle large, refined quantities of that food because it wasn't that available in our evolutionary history.