Amid busy construction crews racing to build an airport in Mexico, scientists are unearthing more and more mammoth skeletons in what has quickly become one of the world’s biggest concentrations of the now-extinct relative of modern elephants.More than 100 mammoth skeletons have been identified spread across nearly 200 excavation sites, along with a mix of other Ice Age mammals, in the area destined to become the Mexican capital’s new commercial airport.Lead archeologist Ruben Manzanilla explained on Tuesday that around 24,000 years ago mammoth herds reached this spot where sprawling grasslands …

Vaping by U.S. teenagers fell dramatically this year, especially among middle schoolers, according to a federal report released Wednesday.Experts think last year’s outbreak of vaping-related illnesses and deaths may have scared off some kids, but they believe other factors contributed to the drop, including higher age limits and flavor bans.In a national survey, just under 20% of high school students and 5% of middle school students said they were recent users of electronic cigarettes and other vaping products. That’s down from a similar survey last year that found about 28% …

America’s top infectious disease expert, Dr. Anthony Fauci, said Wednesday that AstraZeneca’s suspension of final global trials of its COVID-19 experimental vaccine points to the effectiveness of the safeguards that have been incorporated into the trials.“It’s important to point out that that’s the reason why you have various phases of trials, to determine if, in fact, these candidates are safe,” Fauci said in an interview with “CBS This Morning.”“It’s really one of the safety valves you have on clinical trials such as this.”The British-Swedish pharmaceutical giant paused the trials because …

Development of a COVID-19 vaccine will not be compromised by outside political considerations, U.S. health experts told lawmakers Wednesday.The nation’s top health officials said the six vaccine candidates currently in large-scale U.S. trials are expected to deliver a result that can be distributed to the most vulnerable populations — including health care workers and first responders — by the end of this year.  “We need to follow the process because the process works,” U.S. Surgeon General Jerome Adams told Senate lawmakers Wednesday.  Surgeon General Jerome Adams appears before a Senate …

British-Swedish pharmaceutical giant Astra-Zeneca has paused large-scale global trials of its COVID-19 vaccine because a volunteer participant became ill after receiving the experimental drug.   The company issued a statement Tuesday saying the pause in testing is a “routine action, which has to happen whenever there is a potentially unexplained illness in one of the trials, while it is investigated, ensuring we maintain the integrity of the trials.”AstraZeneca developed the vaccine, AZD1222, in cooperation with Britain’s University of Oxford. The vaccine is being tested in large-scale Phase 2 and Phase 3 …

For the first time in Australia, teenagers have launched a class-action lawsuit on behalf of young people around the world to stop the extension of a coal mine in the state of New South Wales. Anxiety over global warming is driving this teenage campaign to stop the expansion of a coal mine near Gunnedah, 430 kilometers northwest of Sydney, in the state of New South Wales. The class-action lawsuit asserts that Australia’s Environment Minister Sussan Ley, has a legal duty to protect young people and should reject the proposal. The claimants are between the ages of 13 and 17. They argue that by burning coal, climate change will …

A group of migrants being held at a dockside camp on the Spanish island of Gran Canaria chanted “freedom” on Tuesday as they tried to force open a police fence and the coast guard brought in more people rescued from boats on the Atlantic sea.Although sea-borne migration to Spain is down nearly 19% this year, arrivals to the Canary Islands have surged 573% to 3,933 migrants, data from Spain’s interior ministry shows.A coast guard spokeswoman said 81 North African men were rescued from three small boats and taken to the …