Species and subspecies of bear known to have produced offspring with another bear species or subspecies include black bears, grizzly bears and polar bears, all of which are members of the genus
The grizzly bear wins!
These huge animals can weigh up to 600 pounds and have sharp curved claws as long as bananas. All it would take is one powerful bite or swipe from the grizzly, and the black bear might not recover. The only real advantage the black bear had in this fight was its instinct to flee and climb trees.
Not all grizzlies are “grizzled” and not all black bears are black! Despite the names grizzly and black, coat color is the least reliable characteristic for identifying bears. For instance, grizzlies may be pale—almost luminous—blond, or reddish blond, light brown, darker brown, or even almost black.
The sloth bear was listed to have made hybrids with a Malayan sun bear in Tokyo, and with an Asiatic black bear (Selenarctos thibetanus) (Gray, 1972; Asakura, 1969; Scherren, 1907). The fertility of the offspring is not detailed.
Kodiak bears are a unique subspecies of the brown or grizzly bear (Ursus arctos middendorffi). They live exclusively on the islands in the Kodiak Archipelago and have been isolated from other bears for about 12,000 years. There are about 3,500 Kodiak bears; a density of about 0.7 bears per square mile.
However, grizzly bears are tougher than polar bears as they possess stronger and longer claws and an elongated skull with sharp and long canines that can completely separate the flesh from bone.
Black bear males and females come together only during breeding season. A female may mate with several males during a short estrus period and cubs from the same litter may have different fathers.
If the bear sees the person as enough of a threat to attack, then it's not going to stop until the threat is gone. That means the human would need to leave, die, or feign death. The chances are high that the human would die or be severely injured. One thing is certain: the human is not going to win the fight.
Bears are normally shy, retiring animals that have very little desire to interact with humans. Unless they are forced to be around humans to be near a food source, they usually choose to avoid us.
Grizzly Bears have 20 claws, several inches in length, one on each toe of their four feet. Silverback Gorillas have nails on their fingers and toes like humans. The grizzly would more than likely win in a fight against a Silverback gorilla.
In the battle of the grizzly bear vs tiger, a Siberian tiger would win a fight against a grizzly bear. The Siberian tiger is an ambush predator, and it's the only big cat that comes close to the grizzly bear in terms of size and power.
Among all bear species, both the grizzly bear and polar bear take the crown as the strongest. Weighing more than around 800 pounds — the maximum recorded size is twice that figure — an individual male grizzly is equivalent to around five humans in strength … and even more when enraged.
The world's record Alaska brown bear (Ursos arctos middendorffi) scored 30 12/16 and was taken near Kodiak's Karluk Lake in late May 1952. The immense bear was shot by Roy R. Lindsley, who was a U.S. Fish and Wildlife Service employee based in Kodiak.
USGS Science Explorer. It is a close call, but the polar bear is generally considered the largest bear species on Earth. A close second is the brown bear, specifically the Kodiak bear. The Kodiak is a subspecies of the brown bear native to Alaska.
While grizzly bears were thought to be the largest bear other than polar bears, Kodiak bears beat out grizzly bears in both size and weight.
Species and subspecies of bear known to have produced offspring with another bear species or subspecies include black bears, grizzly bears and polar bears, all of which are members of the genus Ursus. Bears not included in Ursus, such as the giant panda, are expected to be unable to produce hybrids with other bears.
Edward Topsell's woodcut illustration of a bear-human hybrid that he called “Arctopithecus” (source: The History of Four-Footed Beasts and Serpents, 1658).
Three-toed sloths are some of the slowest and seemingly laziest creatures in the world.
The spirit bear, also known as the Kermode bear, is the rarest bear in the world and a subspecies of the black bear found only in this small part of British Columbia.
On a trail or in the woods
Make your presence known by speaking in a calm tone. Don't startle the bear. Alter your route or back away slowly, preferably in the direction you came. Walk, do not run, and keep your eye on the bear so you can see how it reacts.
Brown/Grizzly Bears: If you are attacked by a brown/grizzly bear, leave your pack on and PLAY DEAD. Lay flat on your stomach with your hands clasped behind your neck. Spread your legs to make it harder for the bear to turn you over.
A bear would win a fight against a lion. Bears have the advantage in just about every aspect, from size to offensive capabilities. The only time that a lion would win is if it managed to sneak up and ambush a bear, leaping onto it and biting into its head with such power that it shattered the skill.
There were numerous reports of tigers preying on both brown bears and Asiatic black bears, but the relationship, it seems, was not that simple; there were also reports of bears killing tigers.
Kamchatka brown bears are generally not dangerous to humans, and only 1% of encounters result in attack. The first Europeans who went to Kamchatka in the 19th century, although surprised by the number and size of bears there, observed that they were relatively harmless, compared to their Siberian counterparts.