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An analysis of hundreds of bromalites – fossilised faeces and vomit – shows how changes in diet enabled dinosaurs to take over the world in the early Jurassic

Physicists have long wondered why particles can only have an electric charge of +1, -2 or any whole number. Now we increasingly suspect that, actually, that's not true after all

Researchers have used lasers to encode information in diamonds, demonstrating record-breaking data density in an ultra-stable and long-lasting system

Food in the US has a bad rap thanks to outbreaks caused by bacteria, plus processing, additives and food dyes, but the food supply is actually much less risky than people think

Today's huge AI models are composed of several billion numbers known as weights and changing just one of them can destroy their ability to function, leading to “gibberish” output

About 40 years ago, researchers noticed a population of orcas had begun swimming around with dead fish on their heads, and now the craze is back

Swapping classrooms for the woods doesn't appear to improve most children's mental health, but they may still enjoy it

Reperfusion technologies that can reanimate human brains are raising the possibility that death could be a reversible condition, even hours after a cardiac arrest

Space-time may not be continuous but instead made up of many discrete bits – and we may be able to see their effects near the edges of unusually bright black holes

With lithium in short supply, sodium-ion batteries might offer cheap energy storage with less environmental impact

Countries are meeting in South Korea this week to hash out the final details of a global treaty aimed at eliminating plastic pollution — here's what experts say it needs to include

Most people born before 1968 have antibodies against flu viruses similar to the H5N1 strain circulating today, which might lower their risk of severe illness

Most dogs aren't bred to feel at ease in our homes, but scientists studying puppy cognition have found ways you can help yours adapt

Projects to remove carbon dioxide from the atmosphere by making the oceans less acidic are popping up all over the world – New Scientist visited one in New York City’s East river

Gene editing in the womb could be more effective than the same treatment after birth, as it is easier to deliver the necessary genetic machinery to fetal cells

A reluctant deal finalised at the COP29 climate summit isn't generous enough to encourage nations to submit more ambitious climate plans, delegates warn

Enigmatic phenomena called fast radio bursts might be caused by interstellar objects colliding with highly magnetised neutron stars

Earthen channels that span more than 640 kilometres show that pre-Mayan Mesoamericans built large-scale fish-trapping facilities earlier than previously thought

A rock that formed around 4.5 billion years ago on Mars before being blasted into space by a meteor strike and making its way to Earth contains telltale evidence that it was formed in the presence of hot water

When deciding whether to let people await trial at home or in jail, US judges can use a risk score algorithm. But it often makes harsher recommendations than humans do