Bone

Bones are items primarily obtained as drops from skeletons and their variants.

Mobs
Skeletons, wither skeletons, skeleton horses, and strays may drop 0–2 bones upon death. Salmon may drop 0-1 bones upon death.

Fishing
Bones can also be obtained by fishing as part of the junk category. The best chance of catching a bone is achieved without the Luck of the Sea enchantment, yielding a 1.1% chance.

Wolves
Using a bone on a wild wolf has a $1/3$ chance of taming it. Bones cannot tame a hostile wolf or a wolf that has already been tamed. However, bones can be used to attract the attention of the tamed ones.

Trivia

 * As with sticks and blaze rods, bones are wielded as a tool instead of an item.