The bone is one of the three ingredients to a potion that will stop the giant shark, Booga. Along with the coconut milk (from the vendor on Main Street) and the key ingredient (down in the ruins like the bone), the bone goes to the medicine man so that he can mix the potion.
To reach the bone, climb down the jagged hole in the underground ruins. The key ingredient is in the next chamber to the left. Get a grass skirt from Booga Bay, so that the medicine man will treat you like a native. Push the big rock to the right to reach the vines, and climb up.
(see relayed question)
In the Temple
it is under the big tooth
Somewhere in the temple.... 0_o :P
There is no honey on Shark Tooth Island. The three ingredients you need are coconut milk, a creature bone, and the green Key Ingredient. (see related question)
You use it to make the medicine for The great Booga
Shark tooth island is when you have to to save people from a giant shark
In Poptropica there is Shark Tooth island. If I want to beat it I need a bone, but where is the bone.
A coconut bone and secret ingredient
You'll find the bone to the left of the golden statue with the centipede. Underneath the moving platform.
You get the translation paper and go to the cave its on the top left of the cave.
a bone, a gold pot and carbonated coconut milk
There are no mermaids in Shark Tooth island, you do go into the ocean