Were dinosaurs already on their way out when an asteroid hit Earth 66 million years ago, ending the Cretaceous, the geologic period that started about 145 million years ago? It’s a question that has vexed paleontologists like us for more than 40 years.In the late 1970s, debate began about whether dinosaurs were at their peak or in decline before their big extinction. Scientists at that time noted that while dinosaur diversity seemed to have increased in the geologic stage that spanned 83.6 ...read more
Eight years. Over a billion dollars. New tools that even get at the samples ... and this is what people saw:The sample tray from the return capsule of OSIRIS-REx. These dark black rocks are pieces of the asteroid Bennu. Credit: NASA.If you're a cynic, you might say that's an awful lot for what looks like a plate full of black rocks. You could go out into your driveway and collect something that looks pretty similar to the sample container from NASA's OSIRIS-REx mission. However, you'd be wrong. ...read more
Fossils of prehistoric elephants may have inspired the Greek myth of giant, one-eyed, man-eating creatures, known as cyclopes. In the Odyssey, the ancient Greek poet Homer recounts the hero Odysseus’s near fatal encounter with the cyclops Polyphemus. Stranded with his crew on the island of Sicily, the wily Odysseus blinds the giant and escapes with the remnants of his crew — many of whom had been eaten — beneath a herd of sheep.It’s possible that visitors to islands in the Mediterranean ...read more
“I started waking up in the middle of night with pain in my hand,” says Moon-Moon Majumdar, a medical doctor in the U.K. who has suffered from carpal tunnel for the past four years. “It’s a kind of tingling and burning sensation.”Majumdar sought medical advice and was told to wear a wrist brace at night to prevent her arm and hand from getting into positions that could aggravate the problem.Even though we haven’t seen carpal tunnel appear in the news as much lately, somewhere between ...read more
The sad eyes. The whimpering. The trouble with the water dish. Sometimes, the surgical collar prescribed for a post-op pet can seem worse than the actual wound.Researchers and clinicians call it an “Elizabethan collar” or E-collar because it resembles the fashionable fabric ruffle in Elizabethan times. Pet parents, however, know it as the “cone of shame” for how humiliated and unhappy it makes their pet.In recent years, animal behaviorists have researched the impact of E-collars on anima ...read more
Author Vishay SinghPosted on Categories Discover Magazine