Family of Chilean poet Pablo Neruda said Thursday forensic experts have found evidence of a massive bacterial infection in his remains, increasing their suspicion that he was poisoned by dictator Augusto Pinochet’s regime. —> Read More
AUSTIN, Texas, May 28 (UPI) — Researchers at the University of Texas say they’ve been able to detect epigenetic marks among ancient DNA recovered from human remains. —> Read More
Is the debate over dinosaur “blood” finally over?
Generations of scientists previously believed — and generations of schoolchildren were taught — that dinosaurs were cold-blooded, like fish, amphibians, and reptiles. Then some scientists began to argue that dinosaurs were warm-blooded, like birds and mammals. Meanwhile, other researchers hypothesized that dinos were “mesotherms,” not quite hot-blooded and not quite cold-blooded either.
But now a new paper — essentially a reanalysis of a 2014 study putting forth the mesothermy theory — argues that dinosaurs’ metabolisms and growth rates were strikingly similar to those of modern-day mammals. In other words, they were warm-blooded after all.
“I was surprised to see how well dinosaurs fit within our concept of what it means to be a warm-blooded animal today,” Dr. Michael D’Emic, a paleontologist at Stony Brook University in New York who wrote the paper, told The Huffington Post in an email. “Dinosaurs are a really diverse group of animals that lived over a very long period of time, so I expect that as we study more dinosaurs’ growth, we will find more variability in how fast they grew and what their metabolism was like.”
Not hot, not cold. The original mesothermy study, which D’Emic was not involved in, included an assessment of 21 dinosaur species — such as Tyrannosaurs, long-necked Apatosaurus, duck-billed Tenontosaurus, and bird-like Troodon — as well as a range of mammals, birds, bony fish, sharks, lizards, snakes, and crocodiles, Reuters reported.
The study suggested that the growth rates of dinosaurs’ bones were not characteristic of either warm-blooded or cold-blooded animals, so the prehistoric creatures must have been mesotherms.
Sizing up bones. But D’Emic’s reanalysis of the data showed that the 2014 study had underestimated growth rates for some of the dinosaurs. —> Read More
Sleep is important for long lasting memories, particularly during this exam season. New research suggests that sleeping triggers the synapses in our brain to both strengthen and weaken, which prompts the forgetting, strengthening or modification of our memories in a process known as long-term potentiation. —> Read More
Researchers have found that memories that have been ‘lost’ as a result of amnesia can be recalled by activating brain cells with light. They reactivated memories that could not otherwise be retrieved, using a technology known as optogenetics. —> Read More
Designed for use in military operations, customized Ripsaw tanks will also be made available for recreational market. Continue reading → —> Read More
The Israeli Antiquities Authority says revelers at a Burning Man festival famous for its pyrotechnic spectacles have accidentally torched some remnants of prehistoric man. —> Read More
Don’t unfriend just yet – Facebook is stepping in to mediate online confrontations by making an emotionally intelligent response the easiest thing to do (full text available to subscribers)
Although cynicism has been previously linked to ill physical and mental health, it is the first study to find a correlation with lower wages
AUSTIN, Texas, May 28 (UPI) — Although the Apple Watch boasts wireless charging, two entrepreneurs found that plugging it in is still the fastest way to go. —> Read More