14 December 2020
The US government keeps wild horse populations in check with costly round-ups that use helicopters to frighten the animals into a pen, but some ranchers are now trying fertility darts
11 September 2020
A few dozen mountain lions are trapped in a rural patch of Los Angeles by highways that limit their movement, and have become so inbred they developed kinks in their tails
25 June 2019
In 2018, a satellite-tracked Arctic fox migrated across sea ice from Svalbard to northeast Canada – but repeat journeys may soon be impossible as the poles warm
9 October 2018
The Galapagos archipelago is a growing tourist attraction, which is adding to the problems faced by the islands’ famous giant residents
20 September 2018
As global warming melts the Arctic, all eyes are turning to the riches under the ice. But will polar bears survive the pollutants trickling into the food chain?
8 June 2018
Fishing boats in the Gulf of Alaska are being stalked by enormous sperm whales, which charge in and rip huge volumes of fish from the lines
4 June 2018
Over the next five years 2000 hippos are to be culled in Zambia, supposedly to stop them giving people anthrax, but the cull may inadvertently fuel the trade in hippo ivory
16 November 2017
Donald Trump's administration is reversing a ban on the imports of elephant trophies—including ivory—from Zimbabwe and Zambia
30 October 2017
Legalising the trade in rhino horn from South Africa could match black market supply and maybe even double it, with the aim of driving poachers out of business
30 August 2017
Snow leopards could soon come off the "endangered" list, but while that looks like a win the move could make it harder to drum up support for protective measures
