Biology

A new study found stranded dolphins show brain damage eerily similar to that of people with Alzheimer's. Just like people with dementia sometimes wander far from home, scientists think dolphins with Alzheimer's might get confused at sea.

We've all experienced defeat at some point – losing a game, a potential new job, a debate. Now, a new study has found that the brain may learn from losing to others, with a specific group of neurons tied to defeat that then changes our future behavior.

Sequencing mammoth DNA has already helped scientists map out how these Ice Age giants evolved, migrated, and survived. But there's a hidden layer of history still waiting to be decoded – the microbes that lived inside them.

A chance discovery in a US cheese cave has given scientists a rare glimpse of evolution in real time – and the surprise findings have huge potential for protecting human health, enhancing food security and even delivering new flavors to turophiles.

We know microplastic particles are in the soil our food grows from but is it infiltrating our food chain, or just stirring up trouble at the roots? For the first time scientists have demonstrated how plastic could move from soil to food while it grows.

A skull found on a UK beach has rewritten the history of lizards, snakes and the tuatara, the last survivor of an ancient lineage found only in New Zealand today. The new species dates back 242 million years, making it the earliest known lepidosaur.

We don't fully understand why some people are more attractive to mosquitoes – it's a complicated web of physiological and bacterial factors, geography and species. But a new study suggests that some insects like to home in on the life of the party.

The extraordinary evolution of humans is often attributed to two defining traits: large brains and highly dexterous hands. A new study suggests the evolution of these two traits are interconnected across the entire primate lineage, from lemurs to humans.

In the largest study of its kind, scientists have documented the seismic shift in animal size over the last 1,000 years, with domesticated species becoming larger as wildlife gets smaller. It underlines the impact of one species in particular – us.

A mysterious marine epidemic has killed billions of sea stars from North America’s Pacific coast. After more than a decade of unanswered questions, scientists have finally traced the disaster to a single bacterial species.

Right now, groups of Icelanders are taking to the streets late at night, armed with cardboard boxes and torches, in search of the white bellies of baby puffins. This annual tradition has become one of the most fascinating rescue missions on the planet.

Wouldn't it be great if the plants in your home could do more than just sit there looking pretty? Researchers in China have found a way to upgrade succulents into soft glowing night lights in a range of hues, with the use of nanoparticles.

Unearthed in southern Patagonia, a remarkably intact skeleton has been found to be a new species of crocodyliform: A fearsome hypercarnivore that roamed the Earth 70 million years ago, using its blade-like teeth to tear up pray – including dinosaurs.

If you've noticed that you're hearing birdsong longer into your day than you used to, your observation fits with a study examining millions of hours of tweets and warbles. But just why are our feathered friends holding longer concerts?

In a breakthrough, scientists have transferred a courtship behavior from one species to another, triggering the recipient to perform this completely foreign act as if it was natural. It's a feat that has never been genetically engineered before.