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In a Weird Twist, Sperm Have Been Caught Poisoning Other Sperm to Get Ahead in Mice

In a Weird Twist, Sperm Have Been Caught Poisoning Other Sperm to Get Ahead in Mice
5 FEBRUARY 2021
When sperm race, it s for keeps. So it comes as little surprise that in some species, the competition over who reaches the egg first can get a little dirty.
A variant in mice genes has been found to give sperm that possess it a clear advantage by poisoning its peers while they re still in development, robbing them of their ability to efficiently sniff their way towards the egg.

In a rather karmic twist, a race consisting only of would-be assassins would be a complete disaster, with researchers finding the genetic variant risks overdosing on its own killer cocktail unless the race is balanced out by its victims. ....

Alexandra Amaral , Bernhard Herrmann , Max Planck Institute For Molecular Genetics , Max Planck Institute , Molecular Genetics , It Variant , Amp Quot , அலெக்சாண்ட்ரா அமரல் , பெர்ன்ஹார்ட் ஹெர்மன் , மூலக்கூறு ஜெநெடிக்ஸ் , டி மாறுபாடு ,

Anxiety-Inducing Satellite Data Shows Blue Whales Trying to Dodge Boats in Patagonia

CLARE WATSON
5 FEBRUARY 2021
Up to 1,000 shipping vessels storm through blue whale feeding grounds in northern Patagonia every day, according to a new study from researchers who say the findings should support an urgent conversation about the regulation of marine traffic in Chile.

The research, which used satellite tracking data to identify where blue whales – the largest mammal on Earth – come up against heavy shipping traffic, could also in time help to create strategies and safe havens to protect these ocean giants.
This is a great example of where science can directly help inform conservation actions, Vanessa Pirotta, a wildlife scientist at Macquarie University Australia, who was not involved in the study, told ScienceAlert. ....

X Region , Pacific Ocean , Puerto Montt , Centro Ballena Azul , Vanessa Pirotta , Luis Bedri , Austral University Of Chile , Macquarie University Australia , Corcovado Gulf , Chileo Inner Sea , South Pacific Ocean , Ancud Gulf , Austral University , Ship Strike Rule , North Atlantic , Amp Quot , எக்ஸ் பகுதி , பெஸிஃபிக் கடல் , சிஇஎன்டிஆர்ஓ பல்லென நீலம் , லூயிஸ் பெட்ரி , ஆஸ்திரேலிய பல்கலைக்கழகம் ஆஃப் சிலி , மக்வரீ பல்கலைக்கழகம் ஆஸ்திரேலியா , கோர்கோவாடோ வளைகுடா , தெற்கு பெஸிஃபிக் கடல் , ஆஸ்திரேலிய பல்கலைக்கழகம் , கப்பல் வேலைநிறுத்தம் ஆட்சி ,

Ancient Mummy Found Entombed in Strange Cocoon Never Seen by Archeologists

Ancient Mummy Found Entombed in Strange Cocoon Never Seen by Archeologists
LAURA GEGGEL, LIVE SCIENCE
4 FEBRUARY 2021
The discovery of a rare mud mummy from ancient Egypt has surprised archaeologists, who weren t expecting to find the deceased encased in a hardened mud shell.
The mud carapace is an unparalleled find; it reveals a mortuary treatment not previously documented in the Egyptian archaeological record, the researchers wrote in the study, published online Wednesday (Feb. 3) in the journal

It s possible the mud wrap was used to stabilize the mummy after it was damaged, but the mud may have also been meant to emulate practices used by society s elite, who were sometimes mummified with imported resin-based materials during a nearly 350-year period, from the late New Kingdom to the 21st Dynasty (about 1294 BCE to 945 BCE), the researchers said. ....

New South Wales , Charles Nicholson , Karin Sowada , Macquarie University , Chau Chak Wing Museum , Department Of History , Chau Chak Wing Museum Macquarie Medical Imaging , University Of Sydney , New Kingdom , Live Science , Sir Charles Nicholson , Chau Chak Wing , Macquarie Medical , King Amenhotep , King Tut , Amp Quot , புதியது தெற்கு வேல்ஸ் , சார்லஸ் நிக்கல்சன் , மக்வரீ பல்கலைக்கழகம் , ச U சக் சாரி அருங்காட்சியகம் , துறை ஆஃப் வரலாறு , ச U சக் சாரி அருங்காட்சியகம் மக்வரீ மருத்துவ இமேஜிங் , பல்கலைக்கழகம் ஆஃப் சிட்னி , புதியது கிஂக்டம் , வாழ அறிவியல் , ஐயா சார்லஸ் நிக்கல்சன் ,

Do you know burnout when you see it?

Do you know burnout when you see it?
3 Feb, 2021 11:08 PM
6 minutes to read
Failing to address burnout is costly for both individuals and organisations. Photo / 123RF
Harvard Business Review
By: Margaret M. Luciano and Joan F. Brett
Burnout is a state of emotional, physical or mental exhaustion. Organisations often attempt to gauge burnout with annual wellness surveys, which have several significant limitations. First, these surveys assess only the passive forms of burnout. Second, they capture a snapshot in time and might not be administered when employees are actually facing high burnout. Finally, we ve observed that employees experiencing burnout often don t complete them. ....

Joanf Brett , Margaretm Luciano , Record High , Burned Out , எரித்து விடு , பதிவு உயர் , எரிந்தது ஔட் , மன அழுத்தம் ,

Scientists Say This Simple Test Can Identify Whether Your Dog Is a Genius

Scientists Say This Simple Test Can Identify Whether Your Dog Is a Genius
JAN HOOLE, THE CONVERSATION
3 FEBRUARY 2021
Anyone who has lived with a dog will know their capacity for learning the meaning of words, even ones you don t want them to know. How many times have you had to spell the words walk or dinner in the hope of avoiding an explosion of excitement?

Previous studies have investigated how non-human animals, including chimpanzees, sea lions and rhesus monkeys, learn words. But now a paper published in
Nature shows some dogs learn the name of a new object after hearing it only four times, an ability previously thought to be confined to humans. ....

Vicky Nina , Claudia Fugazza , Marco Ojeda , விக்கி நினா , மார்கோ ஓஜேத ,