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In the ultimate pet showdown, we size up the cerebral powers of our favourite furry friends.

Here are some of the behaviours that scientists believe will keep your head in the game

Forget everything you think you know about ageing – this is what scientists want you to know about living better for longer

It's more than a reproductive organ – it's a barometer for the rest of your body

There are undeniable benefits to not having to commute to the office five days a week. There might also be unexpected costs too

Fed up with navigating all the tips telling you how to lose weight? Us too. So we asked an obesity expert to reveal whether anything actually works for weight loss.

For many, caffeine is considered a guilty pleasure. But there is growing evidence that our daily fix isn't necessarily a bad thing. In fact, it might actually be doing us some good.

There are striking new links between weight-loss drugs and impulse control

There could be a reason willpower often wilts in the face of junk foods – their addictive qualities might be overriding our resolve

We know the effects on our bodies. But what about our minds? From depression to addiction and mood, GLP-1s could have neurological impacts

The view of a compassionless psychopath is outdated. In fact, new research shows that those with dark personality traits are much more complicated than that.

At the border between Earth's core and the mantle above, scientists are discovering a hidden world

There is more to cognitive decline than just memory loss

There really is nothing science hasn't turned its attention to

A nose-scratch here and an ear-tug there? The way we look for signs of lying is all wrong, say expert interrogators

An analysis of 177 countries’ green credentials put the US in 19th place and the UK in third

Long thought lost to history, two biologists claim to have found the most likely route taken through the mountains by the military genius

The Lunar Zoomies, playing a late-night gig near you soon

Researchers used satellite imagery to chart how the guano changed colour over three decades

It turns out we have much more control over our bodies as we age than you might think

Scientists calculated the lifespan of 204 countries

Meet the scientist who’s testing cutting-edge ageing research on his own body

A landmark study says your brain can get sharper, not duller, with age. But is it as easy as it sounds?

From pregnancies to Parkinson’s, scientists are only beginning to understand how weight-loss drugs might interact with other medicines