Guardian Environment News

Fish and shellfish populations were falling rapidly as scallop dredgers devastated the seabed, but local activists and small-scale fishers battled hard to protect their coastline

Inside a bothy overlooking the Summer Isles, in the north-west of Scotland, the lilting tones of a traditional Gaelic duo fill a room full of musicians, storytellers, artists, local people and revellers, hung with fish-shaped lanterns and “Happy Birthday” signs.

It’s no ordinary birthday. The people in the small cabin have come together, on a windy night in Achiltibuie, a string of coastal hamlets and villages north of Ullapool, to celebrate an important milestone in the community’s history: a hard-won battle to protect their waters from the ravages of scallop dredging.

Indigenous communities play crucial role, as ‘genetic bank’ area of wetland offers hope for critically endangered reptile

In the 1990s, conservationists in Cambodia feared the Siamese crocodile had disappeared for good. Fishing and hunting had devastated the species throughout the 20th century, leaving populations across its native south-east Asia on the brink of extinction.

But in villages dotted among the wetlands of the remote Cardamom mountains, Indigenous Chorng communities still reported seeing them. Passing this knowledge to researchers surveying the area in 2000 led to an official recording of the species – and bolstered the mission to revive the population.

Two troops of chacma baboons are breaking into homes and shops but animal rights activists insist coexistence is the answer

Cape Town’s city council has said it will “imminently” round up two baboon troops coming into repeated conflict with residents. The animals will be sterilised and permanently moved to a newly constructed sanctuary. The plan has been fiercely criticised by animal rights activists, who say the monkeys should remain roaming freely, and that less destructive options have not been properly considered.

Cape Town’s baboon problem has been brewing since the 2000s, after the city stopped culling troops in the late 1990s after pressure from the public. But in the past two years it has reached boiling point. A 2025 census found that the population had grown by a third since 2000, from 360 baboons to 493, now living in 12 managed troops.

Known as the ‘energy bars of the sea’ the fish are a key food source for many species, but closing fisheries to allow numbers to recover would cost millions

It began on 28 July, when fishers near Saldanha Bay on the west coast of South Africa reported seeing dead sardines (also known as pilchards) floating at sea. Then, in early August, more dead sardines began washing up on beaches near Cape Town.

In the weeks that followed, similar reports came in from places across a vast area spanning 2,600km (1,600 miles) of coastline, such as Henties Bay in Namibia and Mbotyi in the Eastern Cape province of South Africa.

Biggest study of its kind provides insights into bats’ evolution – a potential gamechanger for research into treating viruses and cancer in humans

In the northern forests of the Congo-Brazzaville, as the sun slips away, a distinctive honking fills the dusky sky. Every evening, thousands of hammer-headed fruit bats depart their daytime roosts in search of mates, calling out through large, box-shaped snouts that give the flying mammals the appearance of a winged moose. Here, along the Congo River, scientists have been collecting DNA swabs and tissue samples from the bats for years, working deep into the night in spacesuit-like protective gear.

Those hard-won samples are now among the thousands of specimens gathered from bats across the world that have helped to reshape what we know about the bat family tree.

A magical new film captures the secret life of the deep sea in a stretch of the ocean at risk from industrial mining

A magical film that explores the wonders of the deep sea through the eyes of a team of scientists and an underwater robot called Isis will be shown in selected cinemas across the UK next month.

The documentary, How Deep Is Your Love, offers a playful, irreverent and bittersweet look at our anthropocentric view of Earth, as it switches perspective from humans to deep sea animals and back again. It follows a research team from the Natural History Museum (NHM) in London, who sail for 12 days to reach a remote region called the Clarion Clipperton Zone, a biodiversity-rich area of the Pacific between Hawaii and Mexico. It takes Isis five hours to make the 3-mile (5km) descent to the bottom of this harsh world, where sunlight cannot penetrate, and where nodules rich in minerals mark it out as a hotspot for industrial mining.