It was around 5 pm on March 15, and the light was fading fast, when Constantin and Tatiana were attacked by the bear. The young couple, aged 29 and 31 and identified in local media reports only by their first names, were Belarusians living in Poland. But Constantin had been working for the winter as … Read more
Like a nice wool blanket can help a human baby stay warm and healthy, so too does a baby white spruce get protection from a blanket of snow. At the same time, by preventing the chill of winter from reaching the ground, the snow blanket helps thaw permafrost, or frozen soil packed with ancient plant … Read more
So what’s going on here? For one, the oceans have been steadily warming over the decades, absorbing something like 90 percent of the extra heat that humans have added to the atmosphere. “The oceans are our saviors, in a way,” says biological oceanographer Francisco Chavez of the Monterey Bay Aquarium Research Institute in California. “Things … Read more
Don’t let their fluff fool you: Your cat was built for murder. Felines, no matter how chonky, eepy, or boopable, are remarkably adaptable obligate carnivores, down to eat just about anything that fits in their mouth. Well-intentioned (or … threatening?) gifts of dead birds, rats, and lizards are familiar to outdoor cat owners—even my shockingly … Read more
One of the world’s most peculiar test beds stretches above Princeton, New Jersey. It’s a fiber optic cable strung between three utility poles that then runs underground before feeding into an “interrogator.” This device fires a laser through the cable and analyzes the light that bounces back. It can pick up tiny perturbations in that … Read more
According to Blom, whose group favors thinning dense stands of young trees and reducing accumulations of vegetation and woody debris from the forest floor through prescribed burns or mechanical methods, there are about 26,000 acres of land to be cleared in all 80 sequoia groves on federal land, with some 8,000 acres already treated. On … Read more
Today, however, four of those fish—the humpback chub, the Colorado pikeminnow, the razorback sucker, and the bonytail—are federally listed as threatened or endangered. Lake Powell commandeered the Colorado’s payloads of silt and stymied natural floods, erasing channels and backwaters where chubs and suckers once spawned and reared. And smallmouth bass and other invasive species devastated … Read more
But vampire bats represent a new threat because they feed on the blood of other animals. Their usual victims are livestock, and occasionally wild mammals and birds. Using their sharp front teeth, they make a small incision in their victim’s skin and lap up a teaspoon or two of blood with their tongues. The bites … Read more
By laying eggs in the rivers, the chum salmon might actually help native fishes by providing food for them. These frigid Arctic waters aren’t particularly productive, biologically speaking, meaning there isn’t normally a tremendous amount for native species like Dolly Varden and Arctic char to eat. “When salmon are spawning, it’s just a natural part … Read more
Bioacoustics can’t fully replace ecology fieldwork, but can provide reams of data that would be extremely expensive to collect by merely sending scientists to remote areas for long stretches of time. With bioacoustic instruments, researchers must return to collect the data and swap batteries, but otherwise the technology can work uninterrupted for years. “Scaling sampling … Read more