The three bones which amplify the vibrations of the ear drum are

The pressure from sound waves makes the eardrum vibrate.
The vibrations are transmitted further into the ear via three bones in the middle ear : the hammer (malleus), the anvil (incus) and the stirrup (stapes).

Hey :)

Polyploidy is less common in animals, but some fish, reptiles, and one mammal, the red vizcacha rat, are polyploidy. Polyploidy changes the genome of the new organism so much that it might no longer be able to mate with the original species, resulting in speciation, or the creation of two species from one

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