Lions and hyenas ate the intestines and inner organs first”. The location of the bones reveals that the bears likely only entered the cave through the main opening and inhabited its drier areas.
http://www.bbc.co.uk/nature/12819243
Sleeping on its bed, a giant cave bear opens one eye, alert to any intruder. It stands, lifting its massive 400kg frame and bares its teeth. In front of it is an equally sized cave lion; a giant predatory cat, and the cave bear's mortal enemy.
http://www.bbc.co.uk/nature/12819243
The bears' bones, claw marks they left in the caves in which they lived, and even the beds they slept on, paint the best picture yet of how these magnificent creatures once lived. But more than that, researchers have also uncovered the petrified bones of the cave bear's foe, the Pleistocene cave lion. More than 25% bigger than today's African lions, the cave lion was itself an impressive predator, one that may have specialised in hunting cave bears for food.
http://www.bbc.co.uk/nature/12819243
Found throughout caves in Europe, the Cave Bear (Ursus spelaeus) was named after the places where its remains are commonly found: caves from England to the Caspian Sea with the majority concentrated in Central and Eastern European mountain chains.
https://www.paleodirect.com/cave-bear-fossils-teeth-bones-claws-for-sale/
Cave Bear remains have been found from England to the Caspian Sea with the majority concentrated in mountainous regions of Central and Eastern Europe.
https://www.paleodirect.com/cave-bear-fossils-teeth-bones-claws-for-sale/
Cave Bear. Was a species of bear which was related to the brown bear or grizzly bear of modern times. It lived and ranged in Europe and went extinct about the end of the ice age, which ended about 20 thousand years ago. Fossils of the bear were found primarily in caves, which is where the bear got its name. It was half again as large as a brown bear, and probably spent a great deal more time in caves than its modern counterpart, the Brown bear, which uses them to hibernate and very little else. The Cave bear was an omnivore, eating carrion, smaller animals and grass as well as berries.
http://www.itsnature.org/rip/recently/cave-bear/
One way to differentiate a cave bear skull from a brown bear (and all other bears for that matter) is the sheer size, first off, and also the prominence of the brow and forehead, unique to the cave bear. Modern bear skulls have a more gradual sloping forehead.
https://www.paleodirect.com/cave-bear-fossils-teeth-bones-claws-for-sale/
Male cave bears weighed on average from 900 to 1100 pounds with females about half that weight. However, overtime, cave bears varied much in size. They grew much larger during glaciations (ice ages) and then smaller during interglacials (between ice ages) to adjust to the climate. The build of its body was similar to that of a grizzly bear.
http://www.bearsoftheworld.net/ursus_spelaeus.asp
In the cave, known as Ursilor cave after its bear inhabitants, Dr Diedrich uncovered 140 cave bear beds, most oval-shaped and up to 50cm deep. Scratch marks establish for the first time that the bears excavated these beds to sleep on, and there is evidence some even died in their sleep.
http://www.bbc.co.uk/nature/12819243
The European Cave Bear or Ursus spelaeus existed during two different ice ages and is one of the best known mammals of the Ice Age. It is believed to have evolved from the Etruscan Bear (possibly Ursus deningeri) and lived from 5.3 million years ago to about 10,000 years ago. The cave bear's lifespan is believed to have been 20 years or less. The name spelaeus was taken from the ancient Roman word spelaio meaning cave. It was given to Ursus spelaeus, because most of the cave bear's remains have been found in caves.
http://www.bearsoftheworld.net/ursus_spelaeus.asp
what is a cave bears size
Male cave bears weighed on average from 900 to 1100 pounds with females about half that weight.