Reference Terms
from Wikipedia, the free encyclopedia
Reindeer (Caribou)
The reindeer, known as caribou when wild in North America, is an Arctic and Subarctic-dwelling deer. About 1 million live in Alaska, and a comparable number live in northern Canada. There are an estimated 5 million reindeer in Eurasia, mainly semi-domesticated. The last remaining European herds of the genetic wild reindeer are found in central Norway. In the wild, most caribou migrate in large herds between their birthing habitat and their winter habitat. Their wide hooves help the animals move through snow and tundra; they also help propel the animal when it swims. Reindeer are ruminants, having a four-chambered stomach. They mainly eat lichens in winter, especially reindeer moss. However, they also eat the leaves of willows and birches, as well as sedges and grasses. There is some evidence to suggest that on occasion they will also feed on lemmings, arctic char and bird eggs.
Related Stories
1
2
Plants & Animals News
May 19, 2026
May 16, 2026 A new study suggests microscopic particles from the gut may actively drive inflammation and chronic diseases associated with aging. Remarkably, gut particles from young animals appeared to counter ...
May 15, 2026 A casual conversation between graduate students helped spark a breakthrough in aging research at Mayo Clinic. Researchers discovered that tiny synthetic DNA molecules called aptamers can selectively attach to senescent “zombie cells,” which are ...
May 14, 2026 Scientists exploring deep underwater canyons off the coast of Western Australia uncovered a hidden world packed with bizarre and elusive marine life — including signs of the legendary giant squid. By analyzing traces of DNA floating in seawater ...
May 14, 2026 Scientists have uncovered a hidden mathematical secret inside the leaves of the Chinese money plant: a naturally occurring geometric pattern known as a Voronoi diagram, something typically associated with city planning, computer science, and network ...
May 12, 2026 Scientists at UBC Okanagan have uncovered how plants produce mitraphylline, a rare natural compound with promising anti cancer potential. The team identified two enzymes that work together to build the molecule’s unusual twisted structure, solving ...
May 12, 2026 Researchers created a special kind of algae that can grab microscopic plastic pollution out of water almost like a magnet. The algae produce limonene, an orange-scented oil that helps them bind to water-repelling microplastics, forming ...
May 10, 2026 Scientists at the University of Rochester pulled off a remarkable experiment: they transferred a longevity-related gene from the famously long-lived naked mole rat into mice, and the mice ended up healthier and lived longer. The special gene boosts ...
May 9, 2026 Scientists studying axolotls, zebrafish, and mice have uncovered a shared set of genes that may one day help humans regrow lost limbs. By identifying powerful “SP genes” involved in regeneration, ...
May 8, 2026 Scientists have uncovered a surprising way to influence the bacteria living in our mouths — not by killing them, but by interrupting how they “talk” to each other. Researchers found that dental ...
May 8, 2026 Beneath the beauty of coral reefs lies a hidden universe of microbes unlike anything scientists expected. Each coral species supports its own specialized microbial partners, many of which have never ...
May 7, 2026 A little-known tree from Brazil’s Atlantic Forest may hold a surprising weapon against COVID-19. Researchers discovered that compounds called galloylquinic acids, extracted from its leaves, can attack SARS-CoV-2 on multiple fronts—blocking the ...
May 3, 2026 Long before humans spread across the globe, a deadly disease may have quietly shaped where our ancestors lived—and even how we evolved. New research reveals that malaria didn’t just threaten early human survival; it actively pushed populations ...
Latest Headlines
updated 12:56 pm ET
May 18, 2026 A random photo snapped in the Australian outback has led to the rediscovery of a plant thought extinct for nearly 60 years — proving that ordinary people with smartphones are quietly transforming ...
May 18, 2026 A new study suggests humans became overwhelmingly right-handed because of two major evolutionary shifts: walking on two legs and developing much larger brains. Researchers found that as human ...
May 17, 2026 A spectacular dinosaur discovery in Spain is giving scientists a rare new look inside the world of stegosaurs. Paleontologists uncovered the best-preserved stegosaur skull ever found in Europe, ...
May 15, 2026 A massive new dinosaur discovered in Thailand is rewriting Southeast Asia’s prehistoric history. The newly named Nagatitan chaiyaphumensis was a ...
May 14, 2026 Scientists have uncovered compelling evidence that dinosaur fossils may still contain traces of their original proteins, overturning a long-standing ...
May 13, 2026 Cacti may look like slow, stubborn desert survivors, but they’re actually evolving at lightning speed. Scientists studying more than 750 cactus species discovered that what really drives the ...
May 12, 2026 A bizarre new giant dinosaur discovered in Argentina is giving paleontologists a fresh look at how Jurassic titans evolved in the Southern Hemisphere. Bicharracosaurus dionidei stretched about 20 ...
May 12, 2026 Scientists revisiting mysterious 540-million-year-old microfossils from Brazil have overturned a major idea about early animal life. What were once thought to be trails left behind by tiny worm-like ...
May 12, 2026 Scientists may have found a powerful new way to hunt for alien life — not by searching for specific molecules, but by looking for hidden patterns in how those molecules are organized. Researchers ...
May 9, 2026 Scientists may have found a smarter, safer way to wipe out termites hiding inside homes. A chemical called bistrifluron prevents drywood termites from forming new exoskeletons during molting, killing ...