17 March 2023
Just 44 years ago, red goshawks were found along Australia’s eastern coastline. But the copper-feathered predators are now missing from 34 per cent of their former range
4 March 2023
Philippine eagles are one of the largest living eagle species and require a huge territory to thrive. A mapping project found that there may be fewer than a thousand individuals left
28 February 2023
Dunkleosteus terrelli was an armoured predator fish with bladed jaws instead of teeth that lived 360 million years ago. Researchers thought it was a 9-metre-long giant but it may have actually have been half that size
6 February 2023
The distinct branching patterns and stripes on the shells of three kinds of nautiluses have been used to identify them as separate species
27 January 2023
Brown bears often scratch their backs on trees, leaving behind chemical signals to other bears. Now, it seems the act also helps protect them from ticks
10 January 2023
Dangling from a tree with just a single foot, sloths can exert more gripping force relative to their weight than primates – and they are consistently, but mysteriously, stronger on their left side
12 December 2022
Pulses of electricity give some fish the ability to identify objects or prey, and a little shimmy helps them take several snapshots that give their underwater world depth
3 November 2022
The first X-ray footage of a toad gulping down a meal reveals that its tongue recoils into its body further than it stretches out to grab prey
21 October 2022
Most snailfish living in the deepest ocean realm known as the hadal zone are ghostly white with tiny eyes. But a newly described species has large eyes and is intensely blue
28 September 2022
Maned sloths were thought to be one species but a genetic and physical analysis suggests there are actually two
