Sloths in new study are stronger on their left side

twenty metres up, the canopy looks like a highway. Different shades of green, yellow and grey leaves fuse, creating the illusion of an endless rainforest. I spent most of 2013 in the canopy of a cloud

Is your grip strength letting you down? Sarah Haselwood explains how you can improve it

The monkey slug is not some experimental genetic monstrosity. But even if you see one in the flesh, you may still be unclear what this odd, brown hairy thing is, with its array of fuzzy tentacles. It

You know when you stare at cute things for too long and they start to look creepy? I’m thinking garden gnomes, baby dolls, any child in a princess outfit and all cats. Well, now there’s another one to

Britain’s wild places are under pressure – but cycling gives us rare access to their beauty and fragility. Sophie Pavelle explores what’s at stake from the saddle

Hidden in rock pools up and down the coastline, the fascinating lifestyle of the shore crab invokes curiosity among beach explorers