To know if a predator is coming
Audible sound is what is actually heard. Some people will interpret audible sounds differently depending on their ability to hear as well as their perceptions. Animals can "hear" sounds that humans cannot hear. There are ranges of sound that are normal for humans.
Some animals can hear higher frequencies than humans can. This is why animals can hear things like dog whistles, and we can't hear them. In all, animals can hear differently than humans in the way that they can hear more. Some animals can hear lower frequencies than humans can. Elephants can hear much lower frequencies than humans.
By radio signals of different ranges
There are all kinds of animals that make the toot sound. Humans for example are one animal that makes that sound.
No, they don't. Animals communicate and hear differently. Some don't even hear at all
Different animals can perceive sounds at different wavelengths. For example a dog whistle has a frequency which dogs can hear but is too high for humans. Furthermore, people's sensitivity to sound frequency changes with age. In general, ordinary range for humans is 20 to 20,000 Hz.
Different animals can perceive sounds at different wavelengths. For example a dog whistle has a frequency which dogs can hear but is too high for humans. Furthermore, people's sensitivity to sound frequency changes with age. In general, ordinary range for humans is 20 to 20,000 Hz.
All animals have different sensitivities of hearing. Different animals hear different sounds. Like a dog. A dog has one of the most sensitive hearing levels. That's what dog whistles were meant to do. They were supposed to make it so humans can't hear it but dogs can.
Because each animal has a different range of sensitivity for sound frequencies; also not all the human beings are identical.
Hello again, The sounds are heard not just by their tones., but for some they feel the vibrations on the ground and some have the accute sense of smell. it would take me a long time to explain this...go to the local Library and read about it from raptors to todays eagles to the thrree toed sloth. Read listen and learn.
It is to show other animals, as making a noise could result in them being killed.
They use them for the same thing humans use them for.