Anewly discovered mammal fossil may give clues to how bones in the middle ear evolved from jaw bones, according to a study published in Science yesterday (December 5). The malleus, incus, and ...

The ear consists of three parts: inner, middle, outer ear Some vertebrates lack middle ... Labyrinth is surrounded by perilymph and then by bone or cartilage. Perilymph cushions labyrinth and assists ...

It is connected to the hammer bone (blue), which along with the anvil (green) make up two of the three middle ear bones. The schematic on the right shows the middle ear in a human embryo ...

Have you ever wondered how the delicate structures hidden deep within your ears first came to be? It’s astonishing to think ...

And so on. Despite these differences, all mammals share four traits that are shown in the diagram below: hair, mammary glands, a hinged jaw, and three tiny middle ear bones. Most have specialized ...

Otosclerosis is a rare hearing condition in which one of the three tiny bones of the middle ear, known as the stapes, hardens, preventing it from vibrating correctly and so decreasing hearing ability.

The eardrum then starts vibrating and these vibrations are passed to three small ear bones – called the hammer, anvil and stirrup. Many animals have ears that are able to detect ultrasound.