After swimming about 60m, I notice a big, murky cloud. It’s blood, though it looks greenish in the water, and I realise that ...

With tide their clock, gravity their compass and sunlight their fuel, animalgae is a deal-breaking bond. Having shed major ...

The natural world has produced some of the most potent poisons known to science. Here are some of the deadliest to humans ...

Green anacondas can grow to almost 9m in length and weigh more than 250kg – that's about the weight of a male grizzly bear.

Sheep and goats may look similar, share pastures and even behave alike – but can they actually produce offspring together?

“I will never forget that moment. I called out to the others. The little shrew looked like something we had only seen once ...

But thanks to a camera-trapping project in the very southern tip of Thailand, scientists from Panthera, the global ...

They found that the shrews’ brain cells lose water but crucially do not die, meaning that the animals retain their brain ...

Not so dim after all: alligators and crocodiles have been caught using sticks as bait to ambush birds – a rare display of ...

By looking in detail at brain activity during sleep, scientists can figure out exactly what animals are dreaming of. Neuronal ...

Barely longer than a matchstick, this tiny Tanzanian chameleon packs one of the fastest weapons in the animal kingdom ...

An early satellite study recorded caribou in Arctic Alaska travelling distances of 5,000km each year, but experts say ...