A great predator is slipping through a hidden passage into the rivers and lakes of Alaska
The long, slender hunter has razor-sharp teeth and poses a threat to native wildlife, say researchers.
Snake skins draped from trees in popular New York State forest – here's what's going on
It may sound like something out of a horror movie, but it's all part of a scientific experiment to understand more about the ingenious survival behaviour of birds.
A deep-sea robot went to one of the darkest places on Earth – what it found was staggering
The voyage included four unnamed submarine canyon systems and nearly 20 methane seeps off the coast of Chile.
Why The Gambia should be your next birdwatching holiday destination
Diverse landscapes, incredible weather and over 600 species of birds. Read on to discover what makes this West African country ideal for birdwatching trips.
Adorable leaf sheep filmed mooching around reef in Indonesia is so cute you won’t believe it’s real
Often known as Shaun the Sheep, these lovable sea slugs are powered by the sun’s rays.
Lost photo reveals "surprising" secrets of enormous dinosaur skeleton destroyed by bombs in 1944
At ten metres long, the dinosaur was one of the largest land predators in history.
A powerful force is pushing lynx to the limit in the high forests of the Southern Rocky Mountains
A new study has revealed that an increase in both the frequency and severity of wildfire – as a result of climate change – could have catastrophic consequences for the big cats.
This big cat skull was found in a cave in Portugal. But all is not as it first seemed…
The almost perfectly preserved skull of the 'leopard of Algar da Manga Larga' was discovered in the early 2000s – now a new study of the specimen reveals it has been hiding a big secret.
Tiny creature with very hairy toes discovered on hillside in Cambodia
Scientists suspect the animal is endemic to this single hill in Cambodia's Battambang Province.
"Time is ticking" for world’s rarest turtle – this new DNA test could help save it from extinction
The portable eDNA test can detect incredibly rare Swinhoe’s softshell turtles in vast bodies of water, say scientists.
Birds
What is the smallest owl in the world? Meet a tiny cutie
The world's smallest raptor is by no means the least deadly, despite weighing less than your average tennis ball. Here we introduce the elf owl, the smallest owl in the world
What exactly is echolocation and how does it work? The incredible adaptation that allows animals to ‘see’ and communicate in the dark
Discover how animals use echolocation to navigate, hunt, identify other species and avoid obstacles.
What's the loudest bird? Meet the strange bird that produces a deafening sound, more like a train horn than a sweet musical bird song
Just which bird has the loudest call? And how do they produce such a peace-shattering sound?
The UK's most spectacular winter bird flocks
Millions of starlings, tens of thousands of waders, hundreds of pied wagtails - the UK is home to some incredible winter flocks, and we've got everything you need to know to track them down.
Hidden in attics, offices and drawers: 6,000 illegal wild bird eggs seized by police in UK's largest-ever haul
In total 56,000 wild bird eggs have been recovered in police raids in the UK, Norway and Australia.
This poisonous bird is the world's most toxic bird - able to exude some of the most powerful poisons in nature
Just how poisonous is the hooded pitohui
How to identify wildlife
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Toad vs frog: How to tell the difference between a common frog and a common toad
Two of the UK's most familiar and widespread amphibian species are the common frog and the common toad, but do you know how to tell them apart?
How to identify animal droppings: Our guide to the wildlife poop you might find in your garden or out on a walk
Droppings or scats can tell us a lot about which animals have been visiting our gardens, parks and countryside, including hedgehogs, foxes and badgers. Our expert guide explains how to identify which poos belong to which species. Plus, animal droppings from species from around the world – and fungi and insects you might spot on droppings.
Swift or swallow: what's the difference between these two incredible long-distance migrants?
Know your swallows from your swifts? Tom Hibbert from The Wildlife Trusts takes a look at some of the differences…
Heron vs egret: what's the difference between these two leggy, long-necked, elegant birds?
Know your herons from your egrets? Tom Hibbert from The Wildlife Trusts takes a look at some of the differences…
How to identify wildlife paths and beds
Tall vegetation in midsummer makes it easy to spot the regular paths that wild animals take - and where they rested.
Plants
10 of the world’s most poisonous plants - including the world's deadliest tree, where every part, from the bark to the sap, is highly toxic
There is an incredible number of dangerous and deadly plants around the world. here are just 10, including some with the ability to kill
How tiny, overlooked, hornworts hold the keys behind plants' epic shift from living in water to smothering the land
A tiny but remarkable plant holds the key as to how plants made the transition from water to dry land over 450 million years ago, and also offers a hopeful new direction for sustainable agriculture
Can anything live on Mars?
We take a closer look at the possibility of microorganisms surviving on the Red Planet
Just how poisonous is ragwort to horses and livestock? Should it be pulled up?
Ragwort is an important plant for biodiversity, but it’s not popular on farmland. Veterinary surgeon Malcolm Morley explains why the species is poisonous to horses and livestock, and why it needs to be managed