Some lizards dive into streams to escape predators, and a specialised bubble-breathing technique enables them to stay submerged for up to 18 minutes

Unravelling the complex biological process that allows fish to regrow injured fins could help advance regenerative medicine in humans

Through science, we are striving for objective knowledge about the universe around us. But physicists increasingly believe achieving this will never be possible

Up to 100,000 extraordinary species, from spiders and beetles to salamanders and fish, live in subterranean caves and cracks. They aren’t as safe down there as we thought

Many fear that voters are being manipulated by political campaigns that use Facebook ads, TikTok and YouTube videos, but research reveals a more surprising story

We're finally pinning down the mechanisms that drive obsessive-compulsive disorder, revealing a complex combination of imbalanced brain networks, the immune system and even gut microbes

Discoveries from the genomes of the last Neanderthals are rewriting the story of how our own species came to replace them

Cosmological puzzles are tempting astronomers to rethink our simple picture of the universe – and ask whether dark matter is even stranger than we thought

Fractals are common in nature because of the surprisingly simple way they are made. Mathematically, they also help us make sense of complexity and chaos – and maybe even quantum weirdness

From the vastness of the universe to the infinitesimal particles that comprise it, extremes of scale defy comprehension – and present a problem for physicists seeking a unified theory of everything

Through science, we are striving for objective knowledge about the universe around us. But physicists increasingly believe achieving this will never be possible

The destruction of telecommunications cables during the eruption of Hunga Tonga-Hunga Haʻapai volcano in 2022 shows that underwater debris currents can travel at 122 kilometres per hour

A 15-kilometre-long mass of lava has formed underneath the Reykjanes peninsula in Iceland and could erupt at any time

An analysis of satellite observations has identified some extreme thunderstorms over the Indian Ocean and Gulf of Mexico with lightning flashes so frequent that the sky would appear continuously lit

An ocean research vessel has just discovered four underwater mountains, the tallest almost 3 kilometres high, that might be hotspots of deep-sea life

Microbes that rapidly convert CO2 to rock could lock away the greenhouse gas in deep underground storage sites, such as depleted oil and gas reservoirs

DNA from bones found in a cave in Germany has been identified as from Homo sapiens, showing that our species endured frigid conditions there as they expanded across the continent

A genetic study of nearly 2700 individuals has revealed the ancestry of Indian people, and gets scientists closer to reconstructing the genomes of ancient Neanderthals

The skull of Shanidar Z was found in the Shanidar cave in the Kurdistan region of Iraq, and has been painstakingly put back together

Genetic analysis of 50,000-year-old Neanderthal skeletons has uncovered the remnants of three viruses related to modern human pathogens, and the researchers think they could be recreated

An experiment inspired by Homer’s description of combat in The Iliad tested the capabilities of the Dendra armour suit from Greece’s Bronze Age

A fossil bone displaying features consistent with Down’s syndrome belonged to a Neanderthal child who survived beyond 6 years old, adding to evidence that these extinct humans cared for members of their community

Twenty people may have died 2000 years ago when an Iron Age bridge suddenly collapsed following a tsunami or flood, but scientists also cannot rule out that they were sacrificed

The technologies introduced by the Romans after they conquered Britain led to the kind of economic growth seen in the industrial age

Highland and lowland populations in Papua New Guinea have different gene variants derived from Denisovan archaic humans, indicating possible adaptations for lower oxygen levels and higher malaria risk

In an effort to understand ancient Neanderthal food preparation techniques, researchers butchered five wild birds using flint stone tools and roasted them

Analysis of DNA from a Neanderthal fossil found in a French cave indicates that it belonged to a group that was isolated for more than 50,000 years

Spear-throwing tools called atlatls allow humans to launch projectiles over great distances, but Neanderthals apparently never used them – and an experiment involving a 9-metre-tall platform may explain why

Discoveries from the genomes of the last Neanderthals are rewriting the story of how our own species came to replace them

Ancient weaponsmiths combined bronze and iron to fashion swords during the early Iron Age – but modern forgers glue together elements from different weapons, making it difficult for researchers to study the ancient technology

Title: U.S. to Reopen Borders to Vaccinated Travelers from Canada, Mexico
Category: Health News
Created: 10/13/2021 12:00:00 AM
Last Editorial Review: 10/13/2021 12:00:00 AM

Title: U.S. Reopens Borders to Vaccinated Foreign Travelers
Category: Health News
Created: 11/8/2021 12:00:00 AM
Last Editorial Review: 11/8/2021 12:00:00 AM

Title: Most Older Adults Plan to Travel Soon, With Precautions: Poll
Category: Health News
Created: 11/17/2021 12:00:00 AM
Last Editorial Review: 11/17/2021 12:00:00 AM

Title: AHA News: Study of Sleep in Older Adults Suggests Nixing Naps, Striving for 7-9 Hours a Night
Category: Health News
Created: 7/26/2022 12:00:00 AM
Last Editorial Review: 7/27/2022 12:00:00 AM

Title: Thyroid Disorders Symptoms and Signs
Category: Diseases and Conditions
Created: 7/26/2018 12:00:00 AM
Last Editorial Review: 5/20/2022 12:00:00 AM

Title: Swelling After Knee Injury May Hinder Healing
Category: Health News
Created: 8/31/2007 12:00:00 AM
Last Editorial Review: 8/31/2007 12:00:00 AM

Title: Tools Test Debunks 'Dumb Neanderthals' Theory
Category: Health News
Created: 8/27/2008 2:00:00 AM
Last Editorial Review: 8/27/2008 12:00:00 AM

Title: Chronic Media Multi-Tasking Makes It Harder to Focus
Category: Health News
Created: 8/24/2009 4:10:00 PM
Last Editorial Review: 8/25/2009 12:00:00 AM

Title: Prior Fractures Could Raise Older Women's Odds for Osteoporosis
Category: Health News
Created: 8/23/2010 4:10:00 PM
Last Editorial Review: 8/24/2010 12:00:00 AM

Title: For Some, Moderate Drinking May Prolong Life
Category: Health News
Created: 8/25/2010 11:09:00 AM
Last Editorial Review: 8/25/2010 11:09:17 AM

Title: Even Before Recession, 14 Million Kids 'Underinsured': Study
Category: Health News
Created: 8/25/2010 6:10:00 PM
Last Editorial Review: 8/26/2010 12:00:00 AM

Title: Risk for Mental Illness Varies by Gender
Category: Health News
Created: 8/23/2011 11:00:00 AM
Last Editorial Review: 8/23/2011 12:00:00 AM

Title: Vitamins, Minerals May Help Older Men's Sperm Stay Healthy
Category: Health News
Created: 8/28/2012 4:05:00 PM
Last Editorial Review: 8/29/2012 12:00:00 AM

Title: 4 Eating Habits May Help Older Women Maintain Weight Loss
Category: Health News
Created: 8/28/2012 2:05:00 PM
Last Editorial Review: 8/29/2012 12:00:00 AM

Title: Ancient Genome Appears to Have Links to Modern Humans
Category: Health News
Created: 8/30/2012 4:05:00 PM
Last Editorial Review: 8/31/2012 12:00:00 AM

Title: Mental and Substance Disorders Major Cause of Nonfatal Illnesses
Category: Health News
Created: 8/28/2013 7:35:00 PM
Last Editorial Review: 8/29/2013 12:00:00 AM

Title: Experimental Drug Shows Promise for Rare Genetic Disorder
Category: Health News
Created: 8/29/2013 12:35:00 PM
Last Editorial Review: 8/30/2013 12:00:00 AM

Title: Start School Later for Older Kids, Pediatricians Urge
Category: Health News
Created: 8/25/2014 9:35:00 AM
Last Editorial Review: 8/25/2014 12:00:00 AM

Title: Even Normal-Weight Teens Can Have Dangerous Eating Disorders, Study Finds
Category: Health News
Created: 8/26/2014 9:35:00 AM
Last Editorial Review: 8/26/2014 12:00:00 AM

Title: Deep Brain Stimulation Safe for Older Parkinson's Patients: Study
Category: Health News
Created: 8/26/2014 12:35:00 PM
Last Editorial Review: 8/27/2014 12:00:00 AM