There is a progressive loss of ability to hear high frequencies with increasing age known as presbycusis.

They hear higher frequencies than humans; their frequency range is 1 to 70 kHz.

Most frogs have thick eardrums close to the surface of the skin and can only hear frequencies below 12 kilohertz.

Thus, it is essential for an owl to have the ability to hear high frequencies.

Younger people have the ability to hear lower and higher frequencies.

Humans could hear frequencies up to twenty thousand a second.

Human beings could hear frequencies up to twenty thousand vibrations a second.

Generally, large animals hear lower frequencies and small ones respond to higher frequencies.

There is even evidence that he could hear very high and very low frequencies late in his life.

By the way, I'm 28 years old, and I still hear frequencies up to 16K easily.