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Wed, 29 Sep 2021
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Animals

Attention

Dearth of worms blamed for dramatic decline in UK songbird population

Song thrush numbers were found to have declined by more than 50 per cent between 1970 and 1995
© Getty/iStock
Song thrush numbers were found to have declined by more than 50 per cent between 1970 and 1995
Britain's first farmland worm survey has revealed that nearly half of English fields lack key types of earthworm and may help explain the alarming decline of one of the country's most loved songbirds.

The citizen science project, in which farmers dug for worms in their own fields, has prompted 57 per cent of them to pledge to change their soil management practices - a move that may benefit the song thrush, for whom worms are a vital food source.

The English population of the song thrush, popular for both its voice and its habit of using stones as an "anvil" to smash the shells of its other favourite food - snails - declined by more than 50 per cent between 1970 and 1995, leading to it being listed as a species of conservation concern.

Question

Mystery as 36ft-long humpback whale is found dead near the mouth of the Amazon river

dead whale
A 36-feet long humpback whale has been found dead in the Amazon jungle, miles from its natural habitat.

Experts in Brazil have been left baffled as to how the ten-tonne animal came to be lying in the woodland area around 50ft (15 meters) from the sea.

The marine mammal was discovered last Friday in the middle of the undergrowth on the island of Marajo off the Araruna Beach, at the mouth of the Amazon River.

Scientists believe the creature died at sea and may have landed in the wooded area after rough seas and high tides threw it inland, far from the ocean.

A team from Semma went to the region to inspect the remains, believed to be a 12-month old calf, and to gather information which could help to explain how the aquatic creature crash landed in the jungle.


Attention

Texas freshwater turtles are dying and state officials don't know why

The Texas Parks and Wildlife Department is investigating several occurrences of dead or dying turtles at locations around Texas. The department has documented about 60 deaths
© Carl Franklin‎
The Texas Parks and Wildlife Department is investigating several occurrences of dead or dying turtles at locations around Texas. The department has documented about 60 deaths
Dozens of turtles across Texas have been found dead or dying in the past four months and experts don't know why.

Since Texas Parks and Wildlife staff first noticed the occurrences in November, they've documented about 60 deaths among four different species of freshwater turtles in Fort Worth, Houston and Jasper, department spokeswoman Aubry Buzek said.

The affected turtles have usually been found alone, either near the shore or out of the water, Stephanie Garcia, another department spokesperson, said. Those still alive are lethargic and seem reluctant to move or escape when approached. Their eyes appear to either be swollen or caked closed with exudate, she said. Testing has shown they are terminally septic, meaning their bodies are fighting severe infections that have spread through the bloodstream.

Black Cat 2

Are cats psychopaths or are they just being cats?

Cute Cat
© SERGEY ZAYKOV/SHUTTERSTOCK
What is it thinking?
When Becky Evans started studying cat-human relationships, she kept hearing, over and over again, about how cats are psychopaths.

On one hand, anyone who has looked into the curiously blank face of a catloaf knows exactly what that means. But also, exactly what does it mean to apply a human mental diagnosis to felines? We let these clawed creatures into our homes and our beds, but we still have trouble understanding them on anything but our own human terms.

Evans, a psychology graduate student at the University of Liverpool, recently devised a survey for owners who think that their cats are psychopaths. The survey asks owners to describe the allegedly psychopathic behaviors, and so far they have included bullying other pets, taking over the dog's bed, and waiting on the kitchen counter to pounce on unsuspecting family members. In short, pretty typical cat behavior.

These answers get at the tricky semantics of calling a cat a "psychopath" when it is just ... a cat. There's always an implicit comparison when we talk about cats as aloof little jerks, says Mikel Maria Delgado, a postdoctoral researcher on cat behavior at the University of California at Davis. And that comparison is with dogs, which humans have spent thousands more years domesticating and molding in our image.
We like things that remind us of us," Delgado told me. "We like smiling. We like dogs doing what we tell them. We like that they attend to us very quickly. They make a lot of eye contact.
Cats, she pointed out, simply don't have the facial muscles to make the variety of expressions a dog (or human) can. So when we look at a cat staring at us impassively, it looks like a psychopath who cannot feel or show emotion. But that's just its face. Cats communicate not with facial expressions but through the positions of their ears and tails. Their emotional lives can seem inscrutable-and even nonexistent-until you spend a lot of time getting to know one.

Doberman

Video shows dog viciously attacking mail carrier in Detroit

DOG ATTACK
A video captured a dog attacking a mail carrier Friday in Detroit as neighbors tried to stop the attack.

A man driving on Ardmore Street near Eight Mile Road on the city's west side saw the vicious attack and people trying to stop the animal.

One person tried to intervene with a broom, while the man in the vehicle got out and used a trash can, but the attack continued. Eventually, a neighbor was able to get hold of the dog's leash and get it off the mail carrier, and the man who was in the vehicle got the victim in his car for protection.

The dog managed to bite through the mail carrier's shoes. EMS transported the victim to a hospital.


Doberman

Woman wrestling with her dogs dies after they attack in Greenville, South Carolina

canine attack
© Angela Antunes / CC by 2.0
Authorities say a 52-year-old woman in South Carolina has been killed after she was wrestling with her dogs in her front yard and they started to attack her.

Greenville County Sheriff's spokesman Lt. Ryan Flood said a neighbor saw the attack around 1 p.m. Thursday and called 911. Another neighbor was able to get the woman away from the dogs, but she had suffered severe injuries.

The Greenville County Coroner's Office said Nancy Cherryl Burgess-Dismuke died at the hospital about nine hours after she was attacked.

Question

Recent reports of mysterious mass bird deaths in Ukraine, Crimea and Mexico

dead starlings
In early February we learned of two cases of mysterious mass deaths of birds in Ukraine and Russia, while back in mid-January a similar report came out of Mexico.

The first incident was reported on February 8th and involved large numbers of dead starlings found on a road alongside the Dnieper River in Ukraine. Here are some of the images from that event:

Binoculars

Wrong place, wrong time: Warbler that should be wintering in southern Asia turns up in Greater Manchester, UK

Hope Carr Nature Reserve, Leigh. Blyth's Reed

Blyth's Reed at Hope Carr Nature Reserve, Leigh.
Bird watchers are all aflutter after a rare species was spotted at a nature reserve.

Several sightings of Blyth's reed warbler have now been confirmed at a United Utilities nature reserve in Leigh.

Blyth's reed warblers are a very rare sight in Britain and even rarer in the North West.

Birding experts at Leigh Ornithological Society believe the sightings at Hope Carr Nature Reserve are the first in Greater Manchester and the first time the tiny bird has been spotted in the UK at this time of year.

It usually spends the winter in India, Bangladesh or Sri Lanka.


Binoculars

Cold weather movement? Rare vagrant owl found on Shetland, Scotland

The Tengmalm’s owl in Tumblin.
© John Coutts
The Tengmalm’s owl in Tumblin. The previous sighting of this rare bird in Shetland was back in 1912.
The discovery of a Tengmalm's owl in a Shetland garden on Tuesday is setting the local and national bird watchers community into overdrive.

Named after a Swedish naturalist, there have only ever been four records of the small owl in Shetland, the last being more than 100 years ago in 1912 in Unst.

The bird was discovered sitting on a tree just outside Jackie and Erik Moar's bedroom window in Tumblin, near Bixter.

They put a photo of the bird on Facebook and within a short while local wildlife photographer Dennis and John Coutts, as well as local wildlife guide Hugh Harrop knew that this was something much rarer than the common long eared owls seen in Shetland trees.


Info

Scientists decode Great White Shark genome

Great white Shark
© Composite adapted from Pixabay
Fort Lauderdale/Davie, Fla. - The great white shark is one of the most recognized marine creatures on Earth, generating widespread public fascination and media attention, including spawning one of the most successful movies in Hollywood history. This shark possesses notable characteristics, including its massive size (up to 20 feet and 7,000 pounds) and diving to nearly 4,000 foot depths. Great whites are also a big conservation concern given their relatively low numbers in the world's oceans.

In a major scientific step to understand the biology of this iconic apex predator and sharks in general, the entire genome of the white shark has now been decoded in detail.

A team led by scientists from Nova Southeastern University's (NSU) Save Our Seas Foundation Shark Research Center and Guy Harvey Research Institute (GHRI), Cornell University College of Veterinary Medicine, and Monterey Bay Aquarium, completed the white shark genome and compared it to genomes from a variety of other vertebrates, including the giant whale shark and humans.

The findings are reported in the 'Latest Articles' section of the journal Proceedings of the National Academy of Sciences, USA.

Decoding the white shark's genome revealed not only its huge size - one-and-a-half times the size of the human genome - but also a plethora of genetic changes that could be behind the evolutionary success of large-bodied and long-lived sharks.

The researchers found striking occurrences of specific DNA sequence changes indicating molecular adaptation (also known as positive selection) in numerous genes with important roles in maintaining genome stability ­­- the genetic defense mechanisms that counteract the accumulation of damage to a species' DNA, thereby preserving the integrity of the genome.