Genetic engineering test with mosquitoes ‘may be game changer’ in eliminating malaria

UK scientist says gene-drive study rendering female insects infertile may lead to ‘self destruct mosquito’ field tests within 10 years

Scientists have successfully wiped out a population of malaria-transmitting mosquitoes by using a radical form of genetic engineering to render the females infertile – in the most advanced and largest ever test of use of the technology to fight the disease.

As well as bringing fresh hope in the fight against one of the world’s biggest killers, the study lays the foundations for further trials of gene-drive technology, which could mean self-destroying mosquitoes being released into the wild within 10 years.

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Blue ticked off: the controversy over the MSC fish ‘ecolabel’

The MSC’s coveted blue tick is the world’s biggest, and some say best, fishery ecolabel. So why is it in the headlines – and does it really do what it says on the tin?

This month, two right whales in the Gulf of St Lawrence were found entangled in fishing gear. One, a female, was first spotted entangled off Cape Cod last year, but rescuers were not able to fully free her; the other, a male, is believed to have become entangled in the Gulf.

Hunted to near extinction before a partial whaling ban in 1935, North Atlantic right whales are once more critically endangered, with only 356 left. The main threat remains human contact: entanglement in fishing gear, and ship strikes. Fatal encounters, caused in part by the whales’ migratory shift into Canada’s snow crab grounds, have soared: more than a tenth of the population died or were seriously injured between 2017 and 2021, mostly in Canada and New England.

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The insect apocalypse: ‘Our world will grind to a halt without them’

Insects have declined by 75% in the past 50 years – and the consequences may soon be catastrophic. Biologist Dave Goulson reveals the vital services they perform

I have been fascinated by insects all my life. One of my earliest memories is of finding, at the age of five or six, some stripy yellow-and-black caterpillars feeding on weeds in the school playground. I put them in my empty lunchbox, and took them home. Eventually they transformed into handsome magenta and black moths. This seemed like magic to me – and still does. I was hooked.

In pursuit of insects I have travelled the world, from the deserts of Patagonia to the icy peaks of Fjordland in New Zealand and the forested mountains of Bhutan. I have watched clouds of birdwing butterflies sipping minerals from the banks of a river in Borneo, and thousands of fireflies flashing in synchrony at night in the swamps of Thailand. At home in my garden in Sussex I have spent countless hours watching grasshoppers court a mate and see off rivals, earwigs tend their young, ants milk honeydew from aphids, and leaf-cutter bees snip leaves to line their nests.

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Cockatoos in Sydney learning from each other to bin-dive for food, study finds

Sulphur-crested cockatoos’ ability to pry open bins has spread across 44 suburbs in only two years

Sulphur-crested cockatoos are learning from each other to open wheelie bins in order to scavenge for food and the behaviour is rapidly catching on across Sydney, according to new research.

With help from the public, Australian and German ecologists have documented cockatoos learning the bin-diving behaviour through social interactions, with reported sightings of the behaviour growing across Sydney in recent years.

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Deadly coral disease sweeping Caribbean linked to wastewater from ships

Researchers find ‘significant relationship’ between stony coral tissue loss disease and nearby shipping

A virulent and fast-moving coral disease that has swept through the Caribbean could be linked to waste or ballast water from ships, according to research.

The deadly infection, known as stony coral tissue loss disease (SCTLD), was first identified in Florida in 2014, and has since moved through the region, causing great concern among scientists.

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The search for the loneliest whale in the world

When people learned he vocalized at a much higher pitch than other whales, they wondered: could other whales hear him? Was he plaintively calling, never hearing a reply? Was he lonely?

The loneliest whale in the world lives in the north Pacific. Scientists have been tracking him on and off for more than 30 years – listening to his vocalizations as he swims back and forth across his patch of ocean, calling into the void and waiting for a reply that never comes. That’s the story, anyway. The makers of a new documentary set out to find the truth – and the whale – but what they discovered is that a whale struggling to be heard may not be that unusual at all.

The tale has its origins in the cold war, when the US military deployed a network of hydrophones across the ocean floor to listen for Soviet submarines. In the process, operators also picked up unexpected background noises, including a series of strange, low-frequency moans initially attributed to an unknown “Jezebel Monster” but later identified as the deep, rumbling calls of blue and fin whales. By the end of the 1980s, with the cold war spluttering to an end, the Pentagon made the network available to whale researchers. Among them was William Watkins, a pioneer in identifying and tracking marine mammals by the sounds they make.

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Goldfish dumped in lakes grow to monstrous size, threatening ecosystems

Minnesota pet owners warned not to release fish into wild, where they wreak havoc on native species

Authorities in Minnesota have appealed to aquarium owners to stop releasing pet fish into waterways, after several huge goldfish were pulled from a local lake.

Officials in Burnsville, about 15 miles south of Minneapolis, said released goldfish can grow to several times their normal size and wreak havoc on indigenous species.

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‘I’d let you bite me!’ Shark Beach With Chris Hemsworth is dangerously flirty TV

Never mind that the Hollywood star has never encountered a great white – this documentary has Thor, his perfect jawline … and flirting so full-on it could crack the camera lens

There are only three reasons why you would watch the new documentary Shark Beach With Chris Hemsworth: you love sharks, beaches or Chris Hemsworth. Hopefully it’s the latter, because that’s clearly what the producers have anticipated.

The opening scene sees the Hollywood actor gazing out to sea at sunrise, surfboard under his arm, blue-steeling the horizon. “There’s nothing quite like the ocean at first light,” he murmurs, as if auditioning for an aftershave commercial. Waves crash. Hemsworth smoulders. A didgeridoo blows.

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Record number of manatees die in Florida as food source dries up

State officials report ‘unprecedented’ deaths due to starvation as pollution and algal blooms take toll

More manatees have died already this year than in any other year in Florida’s recorded history, primarily from starvation due to the loss of seagrass beds, state officials have said.

The Florida Fish & Wildlife Conservation Commission reported that 841 manatee deaths were recorded between 1 January and 2 July, breaking the previous record of 830 that died during the whole of 2013 because of an outbreak of toxic red tide.

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‘Heat dome’ probably killed 1bn marine animals on Canada coast, experts say

British Columbia scientist says heat essentially cooked mussels: ‘The shore doesn’t usually crunch when you walk’

More than 1 billion marine animals along Canada’s Pacific coast are likely to have died from last week’s record heatwave, experts warn, highlighting the vulnerability of ecosystems unaccustomed to extreme temperatures.

The “heat dome” that settled over western Canada and the north-western US for five days pushed temperatures in communities along the coast to 40C (104F) – shattering longstanding records and offering little respite for days.

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‘Killing spree’: Wisconsin’s wolf population plunges after protections removed, study finds

Researchers blame poaching and hunting far beyond quotas after species dropped from endangered list

As many as one-third of Wisconsin’s gray wolves probably died at the hands of humans in the months after the federal government announced it was ending legal protections, according to a study released on Monday.

Poaching and a February hunt that far exceeded kill quotas were largely responsible for the drop-off, University of Wisconsin scientists said.

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Climate crisis causing male dragonflies to lose wing ‘bling’, study finds

Black patterns used to attract mates can cause the insects to overheat in hotter climates

Male dragonflies are losing the “bling” wing decorations that they use to entice the females as climates get hotter, according to new research.

The results have led to the scientists calling for more work on whether this disparate evolution might lead to females no longer recognising males of their own species in the long run.

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Mammoth journey ahead as elephants leave Kent zoo for the Kenyan savannah

All but one of the herd of 13 were born in captivity, but conservationists hope they can be ‘rewilded’


A herd of elephants born and raised in a Kent zoo are about to get on a plane to travel almost 4,500 miles (7,000km) to Kenya, in order to reintroduce them to the wild in a first-of-its kind operation.

The herd of 13, which includes three calves, were all but one born at Howletts Wild Animal Park, a private zoo near Canterbury. The mammoth mission to “rewild” the elephants is being carried out by the Aspinall Foundation, the Kenya Wildlife Service and Sheldrick Wildlife Trust.

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A drop in the ocean: rewilding the seas

From giant clams to zebra shark, marine biologists want to replace lost and vanishing species at sea but face unique obstacles – not least rampant overfishing

Kneeling on the seabed a few metres underwater, I pick up a clam and begin gently cleaning its furrowed, porcelain smile with a toothbrush. It’s a giant clam but a young one and still just a handful. Here in Fiji, giant clams or vasua as they are known, were so heavily overfished for their meat and shells that by the 1980s they were thought to be extinct locally. Australian clams were imported to start a captive breeding programme, and subsequent generations of their offspring have been released on coral reefs across Fiji. They’re still vulnerable to fishing and poaching, but if carefully guarded the giant clams do well and have become symbols of healthy corals reefs inside well-managed marine protected areas.

A key to their early survival is rearing them in cages to keep them safe from predators until they’re large enough to survive by themselves. However, the cages also exclude herbivorous fish, so the clams can easily get overgrown by seaweed, which is where the regular toothbrushing comes in.

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Not a lone shark: bull sharks may form ‘friendships’ with each other, study finds

The apex predators show preferences for certain individuals and avoid others, according to new research on sharks in Fiji

They reach 3.5 metres long, weigh more than 200kg and are an apex predator. But even apex predators need friends. And, according to new research, bull sharks may be capable of making them.

A recently published study from Fiji shows that bull sharks develop companionships – with some sharks showing preferences for certain individuals and avoiding others.

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Damaging ‘fly-shooting’ fishing in Channel sparks concerns

Small-scale fishers say mostly EU fleet is devastating catches with method that nets entire shoals of fish

The UK has been accused of allowing a fleet of mainly EU “fly-shooting” fishing boats “unfettered access” to the Channel, without a proper assessment of the impact on fish populations, the seabed or the livelihoods of small-scale fishers.

Organisations representing small-scale fishers on both sides of the Channel have warned that the fleet is having a “devastating” effect on their catches. They are calling for a review of the vessels’ UK licences until an impact assessment has been carried out.

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Buck naked: nude sunbathers fleeing deer fined for breaking Sydney lockdown

Police fined two men $1,000 each after helicopter and rescue crew sent to help the pair who became lost in bushland after wildlife encounter

New South Wales police have fined two men for breaching coronavirus restrictions after they were startled by a deer while sunbaking naked on a beach south of Sydney and ran into the bush, becoming lost and needing to be rescued.

Police sent a helicopter to search for the pair, who were fined $1,000 for breaching public health orders amid a coronavirus outbreak that has seen residents in greater Sydney locked down and banned from travelling outside their local area.

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Pet lion seized from home in Cambodia capital after appearance on TikTok

Authorities investigated after defanged and declawed animal was seen in TikTok videos in Phnom Penh

Cambodian authorities have confiscated a defanged and declawed pet lion that appeared in TikTok videos taken at a Phnom Penh villa.

The 18-month-old male, weighing 70kg (154lbs), had been imported from overseas by the owner, a Chinese national, to be raised in his home, environment ministry spokesman Neth Pheaktra said.

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Where the buffalo roam: world’s longest wildlife bridge could cross the Mississippi

Conservationist aims to replace old bridge with bison preserve, benefiting environment and spotlighting Indigenous history

Between Iowa and Illinois, spanning the only stretch of the Mississippi River that flows from east to west, sits an exhausted 55-year-old cement bridge. Each day 42,000 cars drive across the ageing structure, which is slated to be torn down and replaced.

But when Chad Pregracke looks at the bridge, he has a different vision entirely – not an old overpass to be demolished, but a home for the buffalo to roam.

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The real urban jungle: how ancient societies reimagined what cities could be

They may be vine-smothered ruins today, but the lost cities of the ancient tropics still have a lot to teach us about how to live alongside nature

Visions of “lost cities” in the jungle have consumed western imaginations since Europeans first visited the tropics of Asia, Africa and the Americas. From the Lost City of Z to El Dorado, a thirst for finding ancient civilisations and their treasures in perilous tropical forest settings has driven innumerable ill-fated expeditions. This obsession has seeped into western societies’ popular ideas of tropical forest cities, with overgrown ruins acting as the backdrop for fear, discovery and life-threatening challenges in countless films, novels and video games.

Throughout these depictions runs the idea that all ancient cities and states in tropical forests were doomed to fail. That the most resilient occupants of tropical forests are small villages of poison dart-blowing hunter-gatherers. And that vicious vines and towering trees – or, in the case of The Jungle Book, a boisterous army of monkeys – will inevitably claw any significant human achievement back into the suffocating green whence it came. This idea has been boosted by books and films that focus on the collapse of particularly enigmatic societies such as the Classic Maya. The decaying stone walls, the empty grand structures and the deserted streets of these tropical urban leftovers act as a tragic warning that our own way of life is not as secure as we would like to assume.

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