In a study published in the journal Current Biology on Thursday, an international team of researchers announced they had sequenced the woolly mammoth's complete genome, using stem cells from an African elephant as a test. That is amazing in and of itself, but the results also reveal interesting new insights into the wooly mammoth's extinction.
As part of their research, the scientists compared DNA from two different woolly mammoths. One lived in Siberia about 44,800 years ago, and the other lived on Wrangel Island, where the last surviving mammoths died, about 4,300 years ago.
The researchers found that the mammoth on Wrangel Island "had long stretches of DNA with no variation between the mother's and the father's contributions," The Los Angeles Times reports. That indicates the Wrangel Island population probably started inbreeding, decreasing the number of genetic variations in the population and thus their chances for survival.
The Week
Escape your echo chamber. Get the facts behind the news, plus analysis from multiple perspectives.
Sign up for The Week's Free Newsletters
From our morning news briefing to a weekly Good News Newsletter, get the best of The Week delivered directly to your inbox.
From our morning news briefing to a weekly Good News Newsletter, get the best of The Week delivered directly to your inbox.
-
Music reviews: Chance the Rapper, Cass McCombs, and Molly TuttleFeature "Star Line," "Interior Live Oak," and "So Long Little Miss Sunshine"
-
Film reviews: Eden and Honey Don't!Feature Seekers of a new utopia spiral into savagery and a queer private eye prowls a high-desert town
-
Critics' choice: Three chefs fulfilling their ambitionsFeature Kwame Onwuachi's grand second act, Travis Lett makes a comeback, and Jeff Watson's new Korean restaurant
-
SpaceX breaks Starship losing streak in 10th testspeed read The Starship rocket's test flight was largely successful, deploying eight dummy satellites during its hour in space
-
Rabbits with 'horns' sighted across Coloradospeed read These creatures are infected with the 'mostly harmless' Shope papilloma virus
-
Lithium shows promise in Alzheimer's studySpeed Read Potential new treatments could use small amounts of the common metal
-
Scientists discover cause of massive sea star die-offSpeed Read A bacteria related to cholera has been found responsible for the deaths of more than 5 billion sea stars
-
'Thriving' ecosystem found 30,000 feet underseaSpeed Read Researchers discovered communities of creatures living in frigid, pitch-black waters under high pressure
-
New York plans first nuclear plant in 36 yearsSpeed Read The plant, to be constructed somewhere in upstate New York, will produce enough energy to power a million homes
-
Dehorning rhinos sharply cuts poaching, study findsSpeed Read The painless procedure may be an effective way to reduce the widespread poaching of rhinoceroses
-
Breakthrough gene-editing treatment saves babyspeed read KJ Muldoon was healed from a rare genetic condition
