20 February 2025
In new video footage, cuttlefish show off their dazzling camouflage techniques, such as creating stripes that move over their bodies or mimicking non-threatening objects
14 February 2024
Cuttlefish usually use ink to confuse predators – but one species uses it as a dramatic backdrop, bursting through an inky cloud during courtship displays like a stage performer making a spectacular entrance
13 February 2024
Some pet dogs retain their baby teeth, creating two rows that resemble the mouth of a shark. A new analysis shows that the condition is more prevalent in smaller breeds and obese dogs
13 February 2024
Male Brachycephalus pulex frogs are so small that two of them can sit side by side on a pinky nail
21 July 2023
Over 99 per cent of green turtles born on beaches in the northern Great Barrier Reef are now female due to nest overheating, but cooling their nests with seawater may help to rebalance the sex ratio
20 July 2023
Two sabretooth cat species that lived 5 million years ago had 10-centimetre-long fangs, which they probably used to hunt prey in forested landscapes like leopards do
20 July 2023
Male orcas with a surviving postmenopausal mother have fewer signs of injury than those whose mothers are dead or still reproducing
20 July 2023
The ability to warm up parts of their body may help basking sharks migrate long distances and overcome drag when they are feeding
19 July 2023
Putting a layer of "crocks", or broken pottery, in the base of flower pots won't improve drainage – and may actually worsen it, says James Wong
19 July 2023
Measurements of alcohol levels in fruits collected in a Costa Rican forest reveal that those eaten by mammals contain higher levels of alcohol
