A 3-month-old puppy has surprised vets by unexpectedly regrowing his jawbone after it had been surgically removed because of a tumor. Tyson the French bulldog had to have the majority of his lower left mandible cut away‚ yet enters the history books as the first reported dog ever to regenerate a lost jaw.Vets first noticed Tyson’s cancer when he was brought in for surgery on a cleft palate in the spring of 2023. The tumor was identified as an oral papillary squamous cell carcinoma‚ with follow-up scans revealing that it had not yet spread to other parts of the body.Keen to act fast‚ the young pup's owners gave the go-ahead for doctors to remove the affected area‚ despite knowing that this would probably leave Tyson without a functioning jaw for the rest of his life. “We decided to give him a chance and continue with surgery‚” explained owner Melissa Forsythe‚ in a statement. “We had no idea his jaw would grow back!”Astonishingly‚ however‚ when Tyson was examined eight weeks later‚ veterinarians noticed that his jaw had indeed regrown. While similar outcomes have previously been recorded in human children‚ this is the first time that this has been observed in a dog.Documenting the case‚ the vets overseeing Tyson’s care explain that bone regrowth in young humans is usually enabled thanks to the presence of stem cells in the periosteum‚ which covers the surfaces of bones. When operating on the puppy‚ surgeons took care to leave as much of the periosteum as possible.“Periosteum was preserved ventrally during this puppy’s surgery‚ and it was likely imperative to the subsequent regeneration of the bone‚” they write. “However‚ exact mechanisms by which bone was regenerated cannot be fully understood in this case.”Whatever triggered the regrowth‚ Tyson’s new jaw is almost as good as the original and is the same length as the right mandible. “The patient has continued to do well seven months after subtotal mandibulectomy‚ with a normal occlusion for the breed and no signs of oral pain or reoccurrence of the tumor‚” write the authors of the case report.Despite surpassing all expectations‚ Tyson’s new jaw does not have any teeth and he can’t yet eat solid foods. As a result‚ Forsythe says "he spent the majority of his puppyhood wearing an E-collar‚ not able to play with toys or chew on anything.”However‚ none of this has stopped Tyson from racking up milestones and achievements. For example‚ he has already graduated obedience class and walked in a Christmas parade.Tyson celebrates his first birthday.Image courtesy of Melissa ForsytheCommenting on this unique case‚ veterinarian Alexandra Wright – who led Tyson’s care team – said "more has to be done to understand the likelihood of this occurring in other dogs and if a specific age range makes a difference.”"[But] this case documents a very positive surgical outcome in a life-threatening situation."The case report is published in the journal Frontiers in Veterinary Science.

Young Americans are turning against Israel‚ and that’s Israel’s fault‚ says New York Times columnist Ezra Klein. Is he right?     In a significant January 27 op-ed‚ Klein…

When we look up at the sky on a particularly dark night‚ there is a sense of timelessness. We might see the flash of a meteor‚ and occasionally a comet is visible to the naked eye‚ but the cold and distant stars are unchanging. Or so it seems. There can also be a sense of calm‚ that despite all the uncertainty of the world‚ the stars will always watch over us. So it’s hard to imagine that light years away there could be a lurking event that poses an existential threat to humanity. That threat is extremely tiny‚ but not zero‚ and it is the focus of a recent paper published in The Astrophysical Journal. The study focuses on kilonovae‚ which can occur when either two neutron stars collide‚ or a neutron star collides with a stellar-mass black hole. Kilonovae are similar to supernovae‚ but much more intense. In the paper‚ the authors look at a particular kilonova known as GW170817. It was detected by the LIGO and Virgo gravitational wave observatories in 2017‚ and seen as a gamma-ray burst by the Fermi and INTEGRAL space telescopes. Since we have both optical and gravitational observations‚ the energy of the kilonova can be calculated quite well. The team took this data and combined it with computer simulations on kilonovae. They wanted to estimate the minimum safe distance of a kilonova. In other words‚ how close to us could one go off and still be a harmless light show? What they found was that there are several safe distances‚ depending on which aspect of the supernova poses a threat. Diagrams of emissions from a binary neutron star merger. Credit: Perkins‚ et al One threat would be the X-ray afterglow. When neutron stars collide‚ a jet of high-energy gamma rays can stream from their common polar region. These jets collide with interstellar gas and create an afterglow of intense X-rays. The intensity of this glow could ionize Earth’s atmosphere‚ leaving us exposed to things like solar flares and ultraviolet radiation. But only if the kilonova occurred within about 16 light-years of Earth. The gamma rays themselves could pose a similar threat‚ but only to within about 13 light-years. But as the team found‚ the greater threat wouldn’t reach us at the speed of light. After the explosion‚ a shockwave from the collision would expand away from the kilonova over the span of about a thousand years. When the shockwave collides with interstellar gas and dust‚ it creates intense cosmic rays. If such a stream of cosmic rays reached us it could vaporize our atmosphere‚ killing almost all life on Earth. But this would only pose a threat to a distance of about 40 light-years. GW170817 occurred about 130 million light-years away‚ so it poses absolutely no threat to us. Even if one were to occur in our stellar neighborhood‚ it would likely be too distant to pose any harm. As far as we know‚ there are no binary neutron stars within 40 light-years that will merge any time soon. So there is nothing for us to worry about. Mostly what this study shows is that throughout the cosmos kilonovae can pose a threat to life from time to time‚ but that threat is not large enough to wipe out a large fraction of worlds. We can face cosmic dangers‚ but thankfully a kilonova isn’t one of them. Reference: Perkins‚ Haille ML‚ et al. “Could a Kilonova Kill: A Threat Assessment.” The Astrophysical Journal 961.2 (2024): 170. The post How Dangerous are Kilonovae? appeared first on Universe Today.

The funk legend realized‚ "I'd better get back to my lessons‚ when I have to wait for somebody all the way over in England to tell me about Robert Johnson!" Continue reading…

Rock 'n' roll and longevity used to be mutually exclusive. Now it's the name of the game. Continue reading…

The following article‚ Why Do So Many Young Americans Hate Israel?‚ was first published on Conservative Firing Line. Young Americans are turning against Israel‚ and that’s Israel’s fault‚ says New York Times columnist Ezra Klein. Is he right?     In a significant January 27 op-ed‚ Klein pointed to a recent poll showing only 27% of Americans aged 18 to 29—known as “Gen Z”—are more sympathetic to Israel than to the Palestinian Arabs‚ as compared to 63% … Continue reading Why Do So Many Young Americans Hate Israel? ...

Tesla’s latest massive recall is a weird one. It’s not about reported problems with sudden braking or driver monitoring alerts or seat belts. Nope‚ this one is all about font size. It turns out that the font size for Tesla’s brake warning system is a bit too small. How small? Smaller than 3.2 millimeters‚ or one-eighth of an inch‚ as prescribed by the Federal Motor Vehicle Safety Standards (FMVSS). So the company has to recall all 2.19 million vehicles it has on the road today — again...

U.S. safety regulators have upgraded their probe into Tesla (TSLA.O)‚ opens new tab vehicles over power steering loss to an engineering analysis - a required step before the agency could demand a potential recall. The National Highway Traffic Safety Administration (NHTSA) on Friday said the investigation covers about 334‚000 Model 3 and Model Y vehicles from the 2023 model year. The agency's upgraded probe follows a December Reuters investigation that found tens of thousands of...

Tesla recalled 2.2 million electric vehicles in the U.S. on Thursday‚ citing an increased crash risk. The National Highway Safety Administration (NHTSA) announced the recall‚ which it attributed to incorrect font sizes on the vehicles’ warning lights‚ NBC News reported. “Warning lights with a smaller font size can make critical safety information on the instrument panel difficult to read‚ increasing the risk of a crash‚” the NHTSA said. Tesla released a free over-the-air...

Pint-Sized Previews are streamlined reviews of children’s content exclusively for our members This content is for members only. Visit the site and log in/register to read.The post The Tiger’s Apprentice first appeared on Worth It or Woke.