Grizzly Bear

Grizzly Bears are "neutral" mobs that spawn in forests. Getting too close to a Grizzly Bear could spell death, but staying a reasonable distance away, it will not charge. Sometimes, Grizzly Bears may raid Bee nests for the sweet honey inside. Bears spontaneously drop their hair, or when they die. This hair can be used to brew knockback resistance potions.

Taming
To tame a Grizzly Bear, one must first drop honey near the bear. After it eats the honey, it will have honey strewn on its face. In this state, feed the bear salmon. It may take more than one piece of salmon, so it is recommended to bring multiple salmon with you. After it eats the salmon, heart particles will appear indicating you have tamed the bear.

Use
Once tamed, you can shift-right click to make the Grizzly Bear sit. You can also right click to ride the bear. While riding, any mob you attack, the Grizzly Bear will engage in combat with. Additionally, the Grizzly Bear will come to your defense if any mobs attack you.