Sam Mazzola keeps a large collection of bears, wolves and tigers at his home in Ohio. He's let people take on "Caesar the Wrestling Bear" for money. Shockingly, on Thursday one of his bears attacked and killed a caretaker.

[A girl at the Brookfield Zoo in Illinois taunts Hudson the polar bear from inside an air-conditioned viewing room during an "excessive heat warning" for the area. At least he has a swimming pool! Image via Getty]

Stephen took issue with an Alaska police force warning people not to use tasers on bears. What kind of evil force would not want to stop America's biggest threat? Video inside.

Animal rights group Animals Asia has released photographs of Chinese maltreatment of animals, including "toothless tigers riding on the backs of horses," pigs on diving boards, and bears riding motorcycles on tightropes. Which is awful! But: Wow! [Telegraph]

Marek Rosin is the latest victim of what Montana authorities believe is a lone black bear that breaks into homes and raids freezers looking for food. Rosin found the bear in his kitchen eating a frozen pizza at 1:30 am.

Earlier in the week, a mama grizzly bear and three cubs attacked hikers in Montana, killing one of them. Yesterday the mother was euthanized, and the cubs are being shipped off to ZooMontana to join its grizzly exhibit. [Billings Gazette]

A black bear on Tuesday walked into a New Hampshire home, ate two pears, some grapes, took a sip from a fishbowl and grabbed a stuffed bear on the way out of the house. The stuffed bear was later recovered.

In what he billed as as possibly "the best bear video...ever" Shep Smith shares this wonderful clip of a baby bear being rescued by her mama after getting caught in a fisherman's net.

Tim Scott was snapping cellphone pictures of a wild black bear in Kentucky when it attacked him: "The bear had a really good chunk of my leg in his mouth and was shaking me." The animal is now being hunted.

This little teddy can't stay awake. As he snoozes, his nose goes smush.

Kung Fu Panda? Forget it. This bear at the Hiroshima zoo doesn't need any mystical dragon powers to kick some serious butt.

Grolar bears have "thick white fur like a polar bear" and "a wide head, brown legs, and brown paws like a grizzly." They happen when global warming drives grizzlies north. Global warming: Cute but deadly. [CBC, SciAm, pic]

Have you even been hanging with a friend when you realize they're just not who you thought they were? Watch this bear cub have that unpleasant realization about his playmate.

This panda furiously attacks the tree branch that wronged it. Aww, panda, you are even adorable when you are angry.

Watch as an unending horde of Teddy Bears attacks a small ocean-side community. Cute as they may be, humans will not soon forget this fateful day, the day of the Teddy Bears.

This clip is like the Berenstain Bears recreated into a WTF nightmare. The notion of a bipedal bear sounds cute until you actually see one, and then you realize it's about 600 pounds and taller than Charles Barkley...and probably hungry!

This family's house cat attacked a bear, demonstrating once again that there is a fine line between bravery and stupidity.

Bear attacks are serious and one way to scare people straight is stop motion animation. It's the "safe" stylistic choice for this video; Michael Haneke is the only filmmaker "real" enough to film a staged murder by bear. Enjoy.

Don't let the cute rolling over trick fool you, this panda clearly has its eyes on freedom.

If hockey is really ever to catch on in the U.S. like it has in other parts of the world perhaps they should consider replacing human players with bears. Watch to the end to witness an actual bear brawl.