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Sun, 20 Sep 2020
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Attention

More dead sea lions, turtles found on Baja Sur beach in Mexico

dead sea ions
183 sea lions have been found dead this month in Comondú

More dead sea lions have turned up in the same area where 137 sea lions washed up on the beach earlier this month in Baja California Sur.

In San Juanico, Comondú, the bodies of 21 sea lions were discovered last week, some clinging to life before bleeding out from their snouts.

This brings the number of dead sea lions to 183 this month alone, BCS Noticias reports.

Attention

Necropsy of massive dead whale under way on Jersey Shore beach

The necropsy of a whale that died at sea is under way Friday on a Brigantine beach.
© Marine Mammal Stranding Center
The necropsy of a whale that died at sea is under way Friday on a Brigantine beach.
A video shows a humpback whale that died at sea and ended up in a Jersey Shore inlet being towed to shore Thursday.

A necropsy of the 30-foot mammal was scheduled to begin on the beach at Seaside Road in Brigantine, Friday morning, according to the Marine Mammal Stranding Center.

The whale may have been entangled at some point and was tracked Wednesday to under the Brigantine Bridge, according to the organization's founder and director, Robert Schoelkopf.

Attention

351 sea turtles found dead in 6 months on coast where 137 sea lions died in Mexico

sea turtle

File pic
Environmental groups say a total of 351 loggerhead sea turtles have been found dead so far this year on the same stretch of Baja California coast where authorities found a total of 137 dead, beached sea lions last week.

The Mexican Center for Environmental Law and the Center for Biological Diversity said Friday the deaths showed the need for a ban on net and line fishing in the Gulf of Ulloa area off the Pacific coast.

Authorities had previously said the sea lions did not show signs of injuries from getting caught up in fishing nets or lines.

But the activists said that nets are one of the main causes of sea turtle deaths.


Source: AP

Comment: Additional info translated via Google:
The Center for Biological Diversity and the Mexican Center for Environmental Law (Cemda) reported that 351 loggerhead turtles were also found dead from January to June of this year on San Lázaro beach, the same place where the corpses of 137 stranded sea lions were found in Comundú, Baja California Sur.
See also: Mystery surrounds death of 137 sea lions washed up on beach in Baja California Sur, Mexico


Info

New mass extinction event discovered

Summary of major extinction events
© D. Bonadonna/ MUSE, Trento
Summary of major extinction events through time, highlighting the new, Carnian Pluvial Episode at 233 million years ago.
In a new paper, published today in Science Advances, an international team has identified a major extinction of life 233 million years ago that triggered the dinosaur takeover of the world. The crisis has been called the Carnian Pluvial Episode.

The team of 17 researchers, led by Jacopo Dal Corso of the China University of Geosciences at Wuhan and Mike Benton of the University of Bristol's School of Earth Sciences, reviewed all the geological and palaeontological evidence and determined what had happened.

The cause was most likely massive volcanic eruptions in the Wrangellia Province of western Canada, where huge volumes of volcanic basalt was poured out and forms much of the western coast of North America.

"The eruptions peaked in the Carnian," says Jacopo Dal Corso. "I was studying the geochemical signature of the eruptions a few years ago and identified some massive effects on the atmosphere worldwide. The eruptions were so huge, they pumped vast amounts of greenhouse gases like carbon dioxide, and there were spikes of global warming".

Blackbox

55-ton sperm whale washes ashore at South Ballina, Australia

dead whale
Surf Life Saving Far North Coast is urging people to stay away from Patchs Beach at South Ballina after a whale washed up late yesterday.

Crown lands was today joined by members of the public helping to recover the deceased mammal, which weighs more than 50,000 kilograms.

"The whale is a sperm whale and it's about 17 metres long certainly the largest one that I've heard of in New South Wales before...We're really keen to learn as much science from this animal as we possibly can," Susan Crocetti from National Parks and Wildlife Service said.

There's no telling how the whale died.

A post mortem report will be completed.


Doberman

Two arrested after newborn dies following dog attack in Doncaster, UK

dog attack
The newborn baby sustained serious injuries after being bitten by the dog, police confirm.

A 35-year-old man and a 27-year-old woman have been arrested on suspicion of gross negligence manslaughter.

South Yorkshire Police have confirmed the pair have both been released on bail while inquiries take place.

The 12-day-old baby sustained serious injuries after being bitten by the dog on Sunday afternoon.

Radar

Animal's magnetic 'sixth' sense may come from bacteria

loggerhead
© Gustavo Stahelin/UCF Marine Turtle Research Group.
A female loggerhead sea turtle nests in the sand in Florida.
A University of Central Florida researcher is co-author of a new paper that may help answer why some animals have a magnetic "sixth" sense, such as sea turtles' ability to return to the beach where they were born.

The question is one that has been unresolved despite 50 years of research.

"The search for a mechanism has been proposed as one of the last major frontiers in sensory biology and described as if we are 'searching for a needle in a needle stack,'" says Robert Fitak, an assistant professor in UCF's Department of Biology, part of UCF's College of Sciences.

Comment: See also:


Attention

10 Pilot whales beach in Iceland, 8 die

Two whales survived.
© Náttúrustofa Vesturlands
Two whales survived.
A pod of ten pilot whales beached in Álftafjörður on the Snæfellsnes peninsula in West Iceland on Sunday. RÚV reports that most of the whales were dead when a team of biologists and a veterinarian arrived on the scene, but two survived the ordeal.

The West Iceland Nature Research Center received a call around 2:00pm alerting them to the pilot whales' dire situation. When the team arrived, they found one whale swimming just offshore from where the rest of its pod had beached. One of the beached animals was still alive but having trouble breathing as it was stuck on its side and the tide was coming in.


Question

Mystery surrounds death of 137 sea lions washed up on beach in Baja California Sur, Mexico

One of the 137 dead sea lions is seen on the beach in Baja California Sur state.
© SEMARNAT
One of the 137 dead sea lions is seen on the beach in Baja California Sur state.
Mexican authorities are investigating after 137 dead sea lions washed up on a beach with no sign of how they died.

The country's office for environmental protection has said the animals do not have injuries from getting caught up in fishing nets or lines.

There are also no marks on their bodies from possible collisions with boats.


Both scenarios are common causes of sea lion deaths or injuries.


Binoculars

Weary warblers: Birds seen acting strangely after cold snap in Colorado

Locals have reported seeing birds around their house — and sometimes inside their house — like this juvenile Wilson's Warbler, still learning how to fly.
© Getty
Locals have reported seeing birds around their house — and sometimes inside their house — like this juvenile Wilson's Warbler, still learning how to fly.
Those weary Wilson's warblers.

Area residents have been noticing the little yellow and green birds in their yards — sometimes acting punch-drunk — following the cold snap and snowfall last week.

While it seems logical that the behavior is due to the cold snap, there may be two separate things going on simultaneously.

A large number of dead birds in the Fryingpan Valley was reported by residents Wednesday on the Roaring Fork Road and Weather Facebook page.

The event might not be exclusive to the Roaring Fork Valley — on Saturday, the Las Cruces Sun News reported that migratory birds are dying in "unprecedented" numbers throughout New Mexico.

Comment: Related: Growing number of dead birds in southern New Mexico raise alarm for wildlife experts