Sentences with phrase «year isolation period»

Using ancient and modern genome - wide data, we find that the ancestors of all present - day Native Americans, including Athabascans and Amerindians, entered the Americas as a single migration wave from Siberia no earlier than 23 thousand years ago (KYA), and after no more than 8,000 - year isolation period in Beringia.

Not exact matches

She said that doing so would result in new information of how organisms evolved over a period of 120,000 years in isolation from the earth's atmosphere.

Earlier this year, the National Association of State Public Health Veterinarians issued new recommendations in the 2016 Compendium of Animal Rabies Prevention advising reducing quarantine periods to four months due to evidence animals in isolation for an extended period of six months can become stressed and depressed, even with regular human socialization.

A group exhibition featuring work by a range of Mexico and U.S - based artists takes as its point of departure the»90s NAFTA years, a period of great change, when Mexico came out of a relative period of isolation, and when the local and the global became one.

He shot more than 6,000 Polaroids in isolation over a 14 - year period, which engulfed the room.

If we were just looking at 30 year periods in isolation, it's inevitable that there will be these ambiguities because data quality degrades quickly back in time.

The thing is, it's not enough to look at a 10 year period in isolation and I would certainly hesitate to draw conclusions about multidecadal variability based on 10 years of data.