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ancient hunter

Early humans may have turned to small game after wiping out big beasts

15 March 2021

Our early human ancestors ate more meat than their hominin forerunners – and some researchers think their hunting strategies offer a clue to how we evolved our intelligence


Interstellar comet Borisov

Seven alien space rocks should pass through our solar system each year

15 March 2021

An estimate of the number of interstellar objects passing through the solar system suggests we should expect seven visitors a year, and some - three per century - could even be from another galaxy


Earth

One side of Earth's interior is losing heat much faster than the other

15 March 2021

The Pacific hemisphere is losing heat from Earth's interior faster than the opposite hemisphere, probably because of where the Pangaea supercontinent was located millions of years ago


Scan of woman

UK still using racially biased passport tool despite available update

15 March 2021

The UK government has failed to deploy an updated version of a face analysis algorithm used for checking passport pictures, despite knowing it works poorly for people with very light and very dark skin


Electric catfish cannot be shocked and scientists don’t know why

Electric catfish cannot be shocked and scientists don’t know why

12 March 2021

Electric catfish use shocks to stun their prey, but they are immune to their own jolts – and tests suggest they may be immune to being shocked at all


Greenland

Signs that Earth was once almost entirely molten found in ancient rock

12 March 2021

Chemical signatures in 3.7-billion-year-old basalt rocks from Greenland support the long-held theory that Earth was once almost entirely molten


Many people experience pain from sitting at a desk for too long

Small device could warn you if you've been too still at your desk

12 March 2021

A small sensor worn on the neck can monitor how much you move while sedentary and give a prompt to get up and exercise


Some Amazon jaguars have adapted to live in treetops to avoid flooding

Some Amazon jaguars have adapted to live in treetops to avoid flooding

12 March 2021

Seasonal flooding can make parts of the Amazon river basin tricky terrain for land animals, so jaguars have taken to spending months in trees and eating monkeys and lizards they find up there


sickle cells

AI helps assess pain levels in people with sickle cell disease

11 March 2021

It can be hard to prescribe effective pain treatment while limiting the risk of addiction to the drugs. Artificial intelligence may help – and one that relies on someone’s vital signs outperforms existing algorithms


Fire safety app simulates wildfires and shows a route to avoid them

Fire safety app simulates wildfires and shows a route to avoid them

11 March 2021

An app that uses fire simulations based on local geography, weather and vegetation can tell people how to avoid the path of a wildfire


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