Life Lines by Dr. Dolittle

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Tag Archive for ‘echolocation’

Getting louder costs more energy

Bats produce sounds to navigate their surroundings in a process called echolocation. The problem is that sound does not travel very well through air. To overcome this barrier, bats produce very high-intensity sounds. In fact, some bats can even produce sounds that are around 137 decibels sound pressure level (dB SPL), which is near the range that can cause hearing damage in people. Just like people, bats call at higher […]

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Human Echolocation

Bats and dolphins are famous for using echolocation to help navigate their surroundings. In contrast, humans normally rely on vision to navigate. When vision is impaired, however, we can learn to rely on echolocation. Although it is rare to find people who rely solely on hearing:

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