Blue whale sightings off South Georgia raise hopes of recovery

After single sighting in 20 years of surveys, new expedition and analysis bring 58

When the Antarctic blue whale – the largest and loudest animal on the planet – was all but wiped out by whaling 50 years ago, the waters around South Georgia fell silent.

Twenty years of dedicated whale surveys from ships off the sub-Antarctic island between 1998 and 2018 resulted in only a single blue whale sighting. But a whale expedition this year and analysis by an international research team resulted in 58 blue whale sightings and numerous acoustic detections, raising hopes that the critically endangered mammal is finally recovering five decades after whaling was banned.

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From concrete to jungle: cartoonist puts Mumbai’s wildlife on the map

The Indian city is home to 20 million people but is also a place rich in biodiversity, with flamingos, leopards and black kites among its flora and fauna

An Indian Ocean humpback dolphin swims beneath an Indo-Pacific octopus close to the coast, a gargantuan atlas moth flutters above Sanjay Gandhi national park, while an Asian palm civet shins up a tree near Vasai Creek and a black kite soars over a banyan tree. All are part of a vibrant new map of Mumbai that showcases the Indian city’s rich biodiversity.

“Most people only think of Mumbai as a concrete jungle, with skyscrapers, slums and beach promenades, but scratch beneath the surface, and you will find a place of rich biodiversity,” says Rohan Chakravarty, an award-winning wildlife cartoonist from Nagpur famous for cartoons that deal with the environment, conservation and wildlife, and creator of the Mumbai map.

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Study adds to calls to ban dogs from beaches during nesting season

Research reveals how ground-nesting birds frequently scared from nest by off-lead canines

There is only one thing more terrifying for a nesting bird than a person walking nearby: when that two-legged beast is joined by a four-legged companion.

A study of how ground-nesting birds are disturbed on beaches in Spain has revealed how they are almost always scared from their nests by passing off-lead dogs, but seem unperturbed by motorbikes, helicopters and low-flying planes.

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First murder hornet nest found to have 200 queens capable of spawning new nests

Washington state scientists found about 500 live specimens in various stages of development inside the basketball-sized nest

When scientists in Washington state destroyed the first nest of so-called murder hornets found in the US, they discovered about 500 live specimens in various stages of development, officials said Tuesday.

Among them were nearly 200 queens that had the potential to start their own nests, said Sven-Erik Spichiger, an entomologist leading the fight to kill the hornets.

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Fears for a million livelihoods in Kenya and Tanzania as Mara River fish die out

Water biodiversity is on the brink, with dire consequences for the region known for the zebra and wildebeest migration, says WWF

Fish are being driven to extinction in the Mara River basin, putting the livelihoods of more than a million people in Kenya and Tanzania in jeopardy, according to WWF.

A report by the wildlife NGO details how farming, deforestation, mining, illegal fishing and invasive species could sound a death knell for the transboundary river.

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Katharine the great white shark resurfaces off US east coast

Transmitter attached to dorsal fin of shark with Twitter following had not sent a definitive message for a year and a half

Katharine, a 14ft-plus great white shark with a Twitter following, appeared again off the US east coast this week. A transmitter attached to her dorsal fin had not sent out a definitive message for a year and a half.

The transmitter that was attached off Cape Cod in August 2013 is roughly half the size of an iPhone and is meant to ping whenever the shark breaks the ocean surface.

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Sound of the city: monkeys shown to prefer traffic over jungle noise

Experiment let the primates choose what they wanted to hear, with rumbling vehicles thought to mimic elements of their own communications

They may be naturally suited to swinging in rainforests, but monkeys in a Finnish zoo have demonstrated a “significant” preference for traffic sounds instead of the noises of the jungle, researchers have found.

As part of an experiment to see how technology could improve the wellbeing of captive animals, researchers installed a tunnel fitted with sensors in the enclosure of the monkeys at Helsinki’s Korkeasaari zoo, giving the primates the chance to choose to listen to the sounds of rain, traffic, zen sounds or dance music.

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Gimme shell-ter: Thai hermit crabs face housing crisis

Population of crustaceans at one national park has exploded amid drop in tourist numbers

Hermit crab numbers in southern Thailand have boomed as foreign tourists have stayed away – so much so that the national park authority are appealing for the public to donate extra shells for them to live in.

The population of the crustaceans, which protect themselves by wearing and living inside the discarded shells of other animals, has exploded on some islands in the Mu Koh Lanta national park, and marine biologists believe the lack of tourists could be a factor.

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Two new greater glider species discovered: ‘Australia’s biodiversity just got a lot richer’

One of the world’s biggest gliding mammals, Australia’s greater glider is actually three separate species, according to new research

One of the world’s biggest gliding mammals, Australia’s once-common and unique greater glider, actually comprises three separate species, according to new genetic research.

Researchers said the findings should prompt urgent work to better understand the three species which are under pressure from rising temperatures, bushfires and land-clearing.

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Sri Lanka rescues 120 whales after biggest mass stranding

Gruelling rescue involved navy and volunteers pulling the pilot whales back into deeper waters

Sri Lanka’s navy and volunteers have rescued 120 pilot whales stranded in the country’s worst mass beaching, but at least two injured animals were found dead, officials said.

Sailors from the navy and the coastguard along with local volunteers had pulled back at least 120 whales by dawn on Tuesday after a gruelling overnight rescue operation, navy spokesman Indika de Silva said.

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Race to save 100 whales in Sri Lanka’s biggest mass beaching

Navy joins forces with rescuers and volunteers in effort to push pilot whales back into ocean

Rescuers and volunteers were racing to save about 100 pilot whales stranded on Sri Lanka’s western coast in the country’s biggest mass beaching.

The short-finned pilot whales began beaching at Panadura, 15 miles (25km) south of Colombo, shortly before dusk. Within an hour their numbers swelled to about 100, a local police chief, Sanjaya Irasinghe, said.

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Voting opens in New Zealand’s beloved Bird of the Year competition

What started 15 years ago as a modest promotion to draw attention to native birds, many of which are endangered, has become a phenomenon

Normally on a post test-match Monday in New Zealand, the talk is all about the national rugby team’s latest performance. But this week, while the All Blacks’ destruction of the Wallabies was on everyones’ lips, there was another topic of conversation: birds.

Voting began on Monday in the hotly contested and brutal election of New Zealand’s Bird Of The Year.

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‘They give me the willies’: scientist who vacuumed murder hornets braces for fight

Chris Looney helped dismantle the first nest of Asian giant hornets in the US. Now he’s preparing for the next step

The eradication of the first nest of Asian giant hornets on US soil somewhat resembled a science fiction depiction of an alien landing site. A crew of government specialists in white, astronaut-like protective suits descended upon the hornet nexus to vanquish it with a futuristic-looking vacuum cleaner, to the relief of onlookers.

The nest of the fearsome invasive insects, notoriously known as “murder hornets”, was found in a tree crevice near Blaine, in Washington state, via a tracking device attached to a previously captured worker hornet. The Washington state department of agriculture (WSDA) confirmed the nest had been successfully removed, with dozens of live captives taken back for inspection.

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‘No predators, plenty to eat’: New Zealand struggles with plague of peacocks

Farmers complain feral birds eat pasture their livestock depend on, and their numbers are increasing thanks to hunting of stoats and possums

A bird renowned around the world for its beauty has showed its ugly side by causing havoc on farms in New Zealand; eating crops, evading control efforts and driving landowners to distraction.

The jade and green peafowl, commonly known as the peacock, has become naturalised in New Zealand after what New Zealand Birds Online calls “benign neglect of birds kept for display”.

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Chameleon last seen a century ago rediscovered in Madagascar

Scientists find several living specimens of Voeltzkow’s chameleon during expedition

Scientists have found an elusive chameleon species that was last spotted in Madagascar 100 years ago.

Researchers from Madagascar and Germany said on Friday they had discovered several living specimens of Voeltzkow’s chameleon during an expedition to the north-west of the African island nation.

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Fish that eat microplastics take more risks and die younger, study shows

Joint study conducted finds that fish fed a diet including plastic were more likely to be eaten themselves

Microplastics can alter the behaviour of fish, with those that ingest the pollutants likely to be bolder, more active and swim in risky areas where they die en masse, according to a new study.

The survival risk posed by microplastics is also exacerbated by degrading coral reefs, as dying corals make particularly younger fish more desperate to find nutrition and shelter, and to venture into waters where they are more likely to be taken by predators themselves.

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Doe your bit: Japan invents bags deer can eat after plastic-related deaths

To keep animals safe from rubbish discarded by tourists, a bag has been devised made from milk cartons and rice bran

The famed deer that roam the city of Nara, in Japan, no longer face discomfort – or far worse – after local companies developed a safe alternative to the plastic packaging discarded by tourists that often ended up in the animals’ stomachs.

Last year several of the 1,300 deer that wander around the ancient capital’s central park were found dead after swallowing plastic bags and food wrappers, prompting calls for tourists not to leave their rubbish behind. One of the dead animals had swallowed more than 4kg of rubbish.

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Estimated 5,000 Cape fur seal foetuses spotted on Namibian coast

Scientists searching for reasons fear breeding cycle will be disrupted for years to come

An estimated 5,000 Cape fur seal foetuses have been found along the shores of Namibia, a large portion of the expected new pup arrivals.

The bodies were spotted by Naude Dreyer of Ocean Conservation Namibia (OCN), who flew his drone over Walvis Bay’s Pelican Point seal colony on 5 October and counted hundreds of bodies. “This is tragic, as it makes up a large portion of the new pup arrivals expected in late November,” he tweeted.

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UK brands act to cut catch of ‘near-threatened’ yellowfin tuna

Voluntary action of companies including Tesco and Princes aims to put pressure on regulatory body to tackle overfishing

British supermarkets and brands, including Tesco, the Co-op and Princes, are stepping up action to cut yellowfin tuna catches in the Indian Ocean, amid warnings the stock is in a “critical” state.

The effort, by companies reliant on healthy fish stocks, represents a counterintuitive effort to force regulators to act, rather than the other way around.

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Rewild to mitigate the climate crisis, urge leading scientists

Restoring degraded natural lands highly effective for carbon storage and avoiding species extinctions

Restoring natural landscapes damaged by human exploitation can be one of the most effective and cheapest ways to combat the climate crisis while also boosting dwindling wildlife populations, a scientific study finds.

If a third of the planet’s most degraded areas were restored, and protection was thrown around areas still in good condition, that would store carbon equating to half of all human caused greenhouse gas emissions since the industrial revolution.

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