Monkey bones

Monkey bones are a form of bones that can be obtained by killing monkeys. They are almost identical to normal bones, but give 5 Prayer experience per bone when buried instead of the usual 4.5, and are sometimes used instead of regular bones. Monkey bones are also used in the Monkey Madness and Recipe for Disaster quests to make Monkey Greegrees.

Cost and XP Analysis
This table can be used to help the player with comparing and deciding on which of the various bones to use for the best balance in cost and XP. Notice how the cost in coins per XP point varies greatly depending on how the bones are used.