Who were the 1st Americans?

The 1st Americans were not who we thought they were | 13 of the oldest archaeological sites in the Americas | Ozone hole above Antarctica bigger than North America Created for {EMAIL} | [Web Version]( October 9, 2023 CONNECT WITH LIVESCIENCE  [Facebook]( [Twitter](  [LIVESCIENCE]( Amazing science every day [SIGN UP]( ⋅ [WEBSITE](  [] Top Science News [] [The 1st Americans were not who we thought they were]( [The 1st Americans were not who we thought they were]( During the last ice age, humans ventured into two vast and completely unknown continents: North and South America. For nearly a century, researchers thought they knew how this wild journey occurred: The first people to cross the Bering Land Bridge, a massive swath of land that connected Asia with North America when sea levels were lower, were the Clovis, who made the journey shortly before 13,000 years ago. But our understanding of this complex history is still evolving, and we're sure now that the Clovis people weren't the continents' first. So who did arrive in the Americas before anyone else, where did they come from, and what discoveries are changing what we know about humans on this great landmass? [Read More]( [] [13 of the oldest archaeological sites in the Americas]( [13 of the oldest archaeological sites in the Americas]( Archaeological discoveries throughout the Americas are pushing back the date for when humans reached the New World by thousands of years, rewriting the long-standing theory that people arrived only 13,000 years ago. Full Story: [Live Science]( (10/9) [] Climate Change [] [Ozone hole above Antarctica bigger than North America]( (ESA/Copernicus Sentinel data (2023)/processed by CAMS/ECMWF) [Ozone hole above Antarctica bigger than North America]( Satellite data shows that this year's ozone hole grew to around twice the size of Antarctica. Researchers say the eruption of Tonga's underwater volcano early last year may be partially to blame for the enormous cavity. [Read More]( [] Astronomy & Astrophysics [] [Watch the 'ring of fire' eclipse using a disco ball]( (Getty Images) [Watch the 'ring of fire' eclipse using a disco ball]( You can't stare at the sun, so how do you watch an eclipse? By reflecting it off of a disco ball, a team of astronomers suggests. [Read More]( [] Health [] [Ozempic-like meds linked to higher risk of severe GI issues]( (NurPhoto / Contributor via Getty Images) [Ozempic-like meds linked to higher risk of severe GI issues]( GLP-1 agonists such as Ozempic come with a higher risk of severe issues like pancreatitis and 'stomach paralysis' than a different common weight-loss drug does. [Read More]( [] Animals [] [Why are orcas harassing and playing with baby porpoises?]( (Wild Orca) [Why are orcas harassing and playing with baby porpoises?]( Scientists may have finally figured out why a population of orcas in the Salish Sea have been tossing porpoises around and taking them into their mouths without eating them for generations. [Read More]( [] Daily Quiz [] How many animals have ever existed on Earth? (Learn the answer [here](.) [Vote]( [8 billion]( [Vote]( [130 billion]( [Vote]( [10 quintillion (that's 1 with 18 zeros)]( [Vote]( [Roughly 4.5 x 10^27](   [Sign Up]( | [Update Profile]( | [Unsubscribe]( [Privacy Policy]( | [Cookies Policy]( | [Terms and Conditions]( CONTACT US: [FEEDBACK](mailto:livescience@smartbrief.com) | [ADVERTISE]( Future US LLC © Full 7th Floor, 130 West 42nd Street, New York, NY, 10036