Modern bears, while typically thought of as carnivores, actually have a wide variety of dietary preferences. However, scientists assumed this based on the diets of currently living brown and black bears. Cave bears eat caribous, woolly rhinoceros, woolly mammoths, woolly bisons, cavemen, and deer. At Riverbluff Cave, Missouri, a series of claw marks up to 15 feet (4.57 m) high have been found along the cave wall indicating short-faced bears up to 12 feet (3.66 m) tall. Diet. Information about the cave bear Ursus spelaeus and other prehistoric creatures. You see a bear’s diet depends on the season. It lived and ranged in Europe and went extinct about the end of the ice age, which ended about 20 thousand years ago. Spectacled Bears are listed as vulnerable on the World Conservation Union’s Red List of Threatened Species. Black bears are the opportunistic feeders. It’s common knowledge that bears are omnivores and eat both plants and meat but are they truly the powerful predators they are portrayed to be? Ancient Cave Lion Bones Reveal Big Cats' Diet By Andrew Curry, Science NOW A quarter larger than today's lions, the European cave lion was one of the biggest cats around 12,000 years ago. Most of their diet consists of grasses, roots, berries, and insects. A recent study found that cave bears may have been almost purely herbivorous, meaning they do not eat meat, when compared to other animal diets from that same time period (~24,000 years ago). Cave bears (Ursus spelaeus), an extinct bear species from Europe, are thought to be omnivorous. The now-extinct cave bear had a lot to contend with back in the day. Some eat only meat while others are omnivores, meaning that they eat both meat and vegetation. True causes for extinction of cave bear revealed: More human expansion than climate change ... brown bears did not depend so heavily on the cave … Cave bear teeth show greater wear than most modern bear species, suggesting a diet of tough materials. What Do Black Bears Eat. ... whether lions were targeting full-size cave bears or their more vulnerable cubs, because adults and babies eat different diets themselves. Ancient Cave Lion Bones Reveal Big Cats' Diet. Was a species of bear which was related to the brown bear or grizzly bear of modern times. Feeding habits of the fossil cave bear (Ursus spelaeus) have always been a controversial topic in Paleontology.In this study, we investigate the paleodiet of cave bears from the Toll Cave (Moià, Catalonia, NE Iberian Peninsula) through biochemical composition of bones and microscopic wear on teeth.