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Watch a cuttlefish transform into a leaf and a coral to hunt its prey

Watch a cuttlefish transform into a leaf and a coral to hunt its prey

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


Brazilian flea toad may be the world’s smallest vertebrate

13 February 2024

Male Brachycephalus pulex frogs are so small that two of them can sit side by side on a pinky nail


Shortage of male turtles could be solved by splash of cold seawater

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


Postmenopausal orcas seem to prevent sons from getting into fights

20 July 2023

Male orcas with a surviving postmenopausal mother have fewer signs of injury than those whose mothers are dead or still reproducing


Basking sharks are one of the few warm-blooded species of fish

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


Amazing fossil hints mammals hunted dinosaurs three times their size

18 July 2023

A small mammal from the Cretaceous Period appears to have been preserved by volcanic debris while attacking a dinosaur three times its size


Fossil of pregnant ground sloth discovered with fetus inside

14 July 2023

Found in a Brazilian cave, the remarkable specimen of a ground sloth fetus inside its mother offers a rare insight into the developmental biology of the extinct mammal


Pigs open doors to free companions in a possible show of empathy

14 July 2023

An experiment in which pigs showed an inclination to help other group members suggests they have an altruistic streak – but selfish motivations can’t be ruled out


Mass fish deaths will occur more often in rivers as UK gets hotter

14 July 2023

Large numbers of dead fish have been seen in many UK rivers in recent weeks, and researchers warn that climate change will lead to more such events


Bone disease in sabre-toothed tigers may be a sign of inbreeding

12 July 2023

An analysis of bones from the La Brea tar pits in California reveals that sabre-toothed tigers and dire wolves had very high rates of osteochondrosis, which may stem from a dwindling gene pool as they neared extinction


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