Humans We need to fully explore the planet to understand our species' origins THE tale of human origins continues to throw up surprises. For many years, the generally accepted narrative was that our species emerged on the continent of Africa, before spreading to other continents around 60,000 years ago. It is certainly true that our origins lie primarily in Africa. But in this issue, we explore the crucial … 51¶¯Âþ
Technology 3D-printed chain mail alternates between flexibility and rigidity The chain mail is strong enough to support a weight A form of 3D-printed chain mail can alternate between being flexible and rigid as needed, meaning it could be used for more comfortable medical supports, strong but flexible military armour or even temporary bridges. Chiara Daraio at the California Institute of Technology and her colleagues … 51¶¯Âþ
Health Covid-19: Why we can't count on herd immunity for protection People hand out information outside Marble Arch tube station in London Throughout the covid-19 pandemic there has been constant reference to the tantalising phenomenon that signals the end: herd immunity. This is when enough people are immune to a virus that it can't spread, therefore protecting the whole community, including those who aren't immune. More … 51¶¯Âþ
Life Spiralling school of jack fish image takes photography prize THIS stunning selection of images showcases the world's biodiversity to highlight the importance of protecting it. The pictures represent some of the winners and runners-up of this year's BMC Ecology and Evolution photography competition, which invited researchers to submit images that they think encapsulate the diversity of animals and plants. The main image is the … Regulars
Humans The other cradle of humanity: How Arabia shaped human evolution New evidence reveals that Arabia was not a mere stopover for ancestral humans leaving Africa, but a lush homeland where they flourished and evolved Features
Humans Why adding a road can increase traffic and other modelling delights Book Atlas of Forecasts: Modeling and mapping desirable futures Katy Börner MIT Press MY LEAFY, fairly affluent corner of south London has a congestion problem , and to solve it, there is a plan to close certain roads. You can imagine the furore: the trunk of every kerbside tree sports a protest sign. How can … Culture
Environment How to help fight the covid-19 litter pandemic THE covid-19 pandemic has changed the litter we generate. Increased use of personal protective equipment (PPE) has added to a pandemic of plastic pollution , particularly medical face masks. Now, researchers are investigating how this wave of "covid litter" is affecting wildlife – and they need your help. The Covid Litter project is calling on … Regulars
The walrus that has taken over a gin distillery’s boat Feedback is our weekly column of bizarre stories, implausible advertising claims, confusing instructions and more Regulars