The field of bioacoustics, studying the sound of animals, extends far below the surface of oceans. Whale vocalizations can be used as data to track migration and populations. Researchers have found ways to identify which whales are making which sounds. But in oceans, human-made sounds are often louder than other noises, making it hard for marine animals to hear the sounds in their own world. Listen to this story about what can be learned by tracking whale sounds, and how new guidelines are helping whales communicate with each other.
Story Length: 7:20
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December 24, 2015
7:22
Ornithologists listening to various bird calls were surprised to discover that different animal species shared the same warning call. For instance, squirrels closely mimic a bird’s warning call. These scientists record sounds in the wilderness all over the world to learn about animal communication. In this story they share different ways they provoke the birds into making bird calls so that they can be studied. Listen to hear about the discoveries of scientists who listen closely.
Read MoreDecember 22, 2015
7:18
Some animals and insects communicate at frequencies that humans can’t hear. Elephants and whales, for example, can find their families and mates using different frequencies. Crickets create vibrations that identify their species to other crickets, which helps to increase the cricket population. Sounds that people don’t pay attention to or sounds that people can’t even hear are all around us. Listen to this story to hear more about these sounds and how they have evolved to help animals survive.
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