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A question we're being asked quite a lot is whether the extra lengths we're going to in terms of hygiene to protect us from COVID-19 might cause us immune problems later because we're living lives that are too clean. This is the basis of what's dubbed the "hygiene hypothesis". But a report out this week says that, actually, it's the environment we'…
 
The general view is that waterways, such as rivers and underground water sources, will dry up during severe drought - but eventually recover and resume their normal flow when the rains return. But new findings from Australia pour cold water on that idea. When researchers analysed 30 years of rainfall and flow data from 161 water catchments in south…
 
An ancient skull, uncovered decades ago in China, has recently been revealed to be possibly the closest ever relative to humankind. It's called "Dragon Man", and based on trace uranium inside the skull, it's been dated to at least 146,000 years old - but could well be much older! This puts it at a critical time period in human evolution, when our a…
 
Few animals inspire the imagination like Tyrannosaurus rex. And the mighty tyrannosaurs did dominate the lands that eventually became central Asia and western North America for millions of years. But during that time, fossils show that medium-sized predators all but disappeared. Why? Thomas Holtz from the University of Maryland dug deep into the re…
 
Previously, researchers knew that sharks can travel back and forth across entire oceans, accurately returning to specific locations. But what we didn't know was whether they memorise these routes, or if they have some sort of inbuilt GPS. To find out how sharks navigate, Charlotte Birkmanis mapped the course with Florida State University's Bryan Ke…
 
New technology may help save bees by providing an antidote for deadly pesticides. The new solution allows beekeepers to feed their bees 'pollen patties', a pollen-sized microparticle filled with enzymes to prevent the bees from ingesting certain pesticides. Carlotte Birkmanis chatted with Cornell University's James Webb to get the latest buzz on th…
 
Covid viruses, vaccines and variants: Chris Smith talks to Radio New Zealand National to bring Kim Hill up to speed with the latest developments on the pandemic front, including the recent case in NZ's Wellington... Like this podcast? Please help us by supporting the Naked Scientistsโดย The Naked Scientists
 
Eastern Australia is currently in the grips of a mouse plague. Mice live everywhere people do, often undetected. Right now though, highly favourable conditions have caused mice populations to explode in the eastern states of Queensland and New South Wales. A year of abundant rainfall after several years of drought has led to bumper crops, providing…
 
Scientists have reported on some unusual things flying in space recently. In one paper, sperm, stored aboard the International Space Station for the last 5 years, has been brought back to Earth and used to fertilise eggs. Also, a group of glow-in-the-dark bobtailed squid headed spacewards to look at how microgravity affects their microbiome. Westmi…
 
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