The ear consists of three parts: inner, middle, outer ear Some vertebrates lack middle and outer ear (Chondrichthyes, Osteichthyes). Middle ear appeared in amphibians. Reptiles, birds, mammals have ...

We can’t hear all levels of sounds ... We detect sounds because inside our ears we have parts that work together to turn sound waves into a signal that is sent to our brain.

However, cotton swabs can push earwax further into the ear, causing wax blockage in the ear canal. Headphones can play a huge part in our lives. However, daily headphone use can pose risks to your ...