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Reef sharks are being wiped out by overfishing so rays are taking over

15 June 2023

A global survey reveals that common species of coral reef shark are in sharp decline, and rays are more abundant in reefs where sharks have been depleted


Dehorning may affect how rhinos interact and establish territory

13 June 2023

Black rhinos are commonly dehorned to prevent poaching, but monitoring data suggests the practice may have an impact on their social interactions


Rare bird not seen for 24 years found alive in Madagascan forests

1 March 2023

The dusky tetraka, a small, ground-dwelling forest bird, hadn't been documented since 1999, but sightings of three individuals have now confirmed that the species is still alive


Aye-aye

Aye-aye and possums top list of mammals we should focus on saving

28 February 2023

Biologists have come up with an improved method of prioritising conservation efforts based on how unique a species is and how endangered its relatives are


Huang Runqiu and Steven Guilbeault

Countries agree landmark deal to halt global decline in nature by 2030

19 December 2022

Nations have pledged to "reverse biodiversity loss" by 2030 at the COP15 summit, but campaigners say the deal doesn't do enough to ensure accountability


Logged forest

Tropical forests ravaged by logging can still have thriving ecosystems

14 December 2022

Logged forests in Borneo have more abundant birds and mammals than pristine forests, showing that conservationists should still try to protect these habitats


Two rhinos grazing

Endangered white rhinos' cells turned into sperm and egg stem cells

9 December 2022

Researchers hope producing embryos from adult cells in the lab could offer a way to save the northern white rhino, with only two females remaining


Grey reef sharks (Carcharhinus amblyrhynchos) swim over a sandy sea bottom in Bora Bora

Electric pulses drastically cut number of sharks caught by accident

21 November 2022

The first trial of the ‘SharkGuard’ technology reduced the bycatch of blue sharks and pelagic rays by as much as 91 per cent, but didn't impact the tuna that fishers were targeting


Wild Javan rhino close up bathing in river

Rhino horns have got smaller over time as poachers target big prizes

1 November 2022

A database of photos taken from 1886 to 2019 reveals that horn size has gradually decreased in five species of rhinoceros, probably due to poaching


Erect crested penguins

Erect-crested penguins always reject their first egg and lay another

12 October 2022

A little-known species of penguin only has the resources to raise one offspring, but an evolutionary quirk means they focus their investment on the second egg


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