Telomeres are the “caps” that protect the ends of DNA strands from being destroyed by a cell. They are made up of areas of repeated DNA sequences combined with specific proteins at the ends of chromosomes — the tightly wound structures of DNA and proteins inside cells. Telomeres play a role in how fast cells … Read more
Somewhere out there, there’s probably a person who has your face. And this unrelated look-alike may have more in common with you than appearances, a new study suggests. The surprising research, based on 32 pairs of unrelated doppelgängers from around the world, shows that two people who have a strong facial similarity to each other … Read more
Death comes for all, but aging doesn’t — at least for some animal species. Two new studies published Thursday (June 23) in the journal Science found that turtles and tortoises have remarkably slow rates of aging. In captivity, without the stress of finding food and avoiding predators, some may not age at all. “That is … Read more
A new, enormous family tree for all of humanity attempts to summarize how all humans alive today relate both to one another and to our ancient ancestors. To build this family tree, or genealogy, researchers sifted through thousands of genome sequences collected from both modern and ancient humans, as well as ancient human relatives, according to … Read more
Ancient trees, the venerable sentinels of forests, may preserve genetic diversity that helps woodlands thrive for thousands of years, a new study suggests. In a typical deciduous forest, the oldest of the old trees — many of which were standing during the First Crusade — can act almost like time-travelers, representing the forest as it … Read more
We’re launching a brand new feature on Liminal Fiction – “Writer Fuel – cool real-world stories that might inspire your little writer heart. Today: Genetic “dark matter” may drive the emergence of new species, new research finds. These long, repeating stretches of the genome, called satellite DNA, may ultimately prevent incompatible animals from mating by … Read more
