"Appetite for drumsticks": First prey found in a tyrannosaur stomach
Prey has been discovered inside the stomach of a tyrannosaur skeleton for the first time, scientists said Friday, revealing that the mighty dinosaurs had an "appetite for drumsticks" when they were young......»»
When conditions cool down, a bacterial prey species becomes the predator
In a new study, two species of bacteria grown in a lab reversed their predator-prey relationship after one species was grown at a lower temperature. Marie Vasse of MIVEGEC, France, and colleagues have published these findings in PLOS Biology......»»
Enigmatic Dinosaur Skull Sparks Debate over Tyrannosaur Evolution
A dinosaur skull first discovered in the 1980s was originally catalogued as a T. rex. Now some scientists argue it represents a new species of tyrannosaur and could shed light on where the massive animals originated.....»»
Study warns of widespread population collapse of African raptors
An international team of researchers has found that Africa's birds of prey are facing an extinction crisis. The study, co-led by researchers from the School of Biology at the University of St Andrews and The Peregrine Fund, warns of declines among ne.....»»
Scientists solve mystery of how predatory bacteria recognizes prey
A decades-old mystery of how natural antimicrobial predatory bacteria are able to recognize and kill other bacteria may have been solved, according to new research......»»
Diversity of bioluminescent beetles in Brazilian savanna has declined sharply in 30 years, finds study
At night in the Cerrado, Brazil's savanna and second-largest biome, larvae of the click beetle Pyrearinus termitilluminans, which live in termite mounds, display green lanterns to capture prey attracted by the bright light......»»
New research shows "juvenile" T. rex fossils are a distinct species of small tyrannosaur
A new analysis of fossils believed to be juveniles of T. rex now shows they were adults of a small tyrannosaur, with narrower jaws, longer legs, and bigger arms than T. rex. The species, Nanotyrannus lancensis, was first named decades ago but later r.....»»
Beluga whales" calls may get drowned out by shipping noise in Alaska"s Cook Inlet
Beluga whales are highly social and vocal marine mammals. They use acoustics to navigate, find prey, avoid predators and maintain group cohesion. For Alaska's critically endangered Cook Inlet beluga population, these crucial communications may compet.....»»
"Appetite for drumsticks": First prey found in a tyrannosaur stomach
Prey has been discovered inside the stomach of a tyrannosaur skeleton for the first time, scientists said Friday, revealing that the mighty dinosaurs had an "appetite for drumsticks" when they were young......»»
Much effort, little prey: Poor foraging success drives bats away from cities
While some wildlife species thrive well in cities, it's harder for large, insectivorous bat species to find enough food. To get their fill, city-dwelling common noctules (Nyctalus noctula) have to hunt longer than their rural counterparts and yet the.....»»
Snake skulls show how species adapt to prey
By studying the skull shapes of dipsadine snakes, researchers at The University of Texas at Arlington have found how these species of snakes in Central and South America have evolved and adapted to meet the demands of their habitats and food sources......»»
Chandra catches spider pulsars destroying nearby stars
A group of dead stars known as "spider pulsars" are obliterating companion stars within their reach. Data from NASA's Chandra X-ray Observatory of the globular cluster Omega Centauri is helping astronomers understand how these spider pulsars prey on.....»»
Silk lines help pirate spiders trick, capture eight-legged prey
Headlamps alone illuminated the trail bisecting the Costa Rican rainforest. Having waded the black of the Tirimbina reserve so often before, Gilbert Barrantes, Laura Segura Hernández and Diego Solano Brenes knew the routine......»»
Beaver exploitation testifies to prey choice diversity of Middle Pleistocene hominins
Exploitation of smaller game is rarely documented before the latest phases of the Pleistocene, which is often taken to imply narrow diets for earlier hominins......»»
Like the phoenix, Australia"s giant birds of prey rise again from limestone caves
Australia's only vulture, and a fearsome extinct eagle, are among the earliest recorded birds of prey from the Pleistocene period more than 50,000 years ago—and now Flinders University researchers are bringing them to life again......»»
Examining the role wolves play in boreal forest dynamics as they constrain beaver movements
A team of land managers at the University of Minnesota, working with a colleague at the University of Manitoba, has learned more about the role wolves play in boreal forest dynamics as they prey on beavers. In their study, published in Proceedings of.....»»
How tiny hinges bend the infection-spreading spikes of a coronavirus
A coronavirus uses protein "spikes" to grab and infect cells. Despite their name, those spikes aren't stiff and pointy. They're shaped like chicken drumsticks with the meaty part facing out, and the meaty part can tilt every which way on its slender.....»»
Study shows willow bark extract has broad-spectrum antiviral effect
From a seasonal cold to a stomach bug, nobody likes catching a virus—and epidemics can be devastating. We need safe, sustainable antiviral options to treat the outbreaks of the future. Scientists in Finland have now shown that an extract of willow.....»»
A new kind of trade deal could help protect the world"s tropical forests
Historically, trade liberalization has been bad news for the world's tropical forests. As wealthy nations' appetite for imported agricultural goods like beef and soy has exploded, deforestation in countries such as Brazil has surged......»»
Once they have laid their eggs, fish become "young" again: Study
The physical relief—in body weight—that temperate fish like cod and Atlantic herring experience after they spawn for the first time allows them to breathe in more oxygen and develop a voracious appetite, all of which leads to a rapid increase in.....»»
Vampire viruses prey on other viruses to replicate themselves—and may hold the key to new antiviral therapies
Have you ever wondered whether the virus that gave you a nasty cold can catch one itself? It may comfort you to know that, yes, viruses can actually get sick. Even better, as karmic justice would have it, the culprits turn out to be other viruses......»»