Researchers in New Zealand have made what they believe is the first recording of a shark actively making noise. By Yan Zhuang Dolphins whistle. Whales sing. Fish croak, chirp, grunt, hum and growl.

Researchers have known for centuries that some fish make sounds. Now, using special underwater acoustics, researchers have ...

Sharks have long been believed to be silent, stalking their prey and wolfing them down without comment. They’re ruthless and efficient. But a team of marine biologists in New Zealand are challenging ...

Sign up for CNN’s Wonder Theory science newsletter. Explore the universe with news on fascinating discoveries, scientific advancements and more. Sharks have a ...

MORE THAN 1,000 metres below the surface of the oceans, darkness reigns. For animals living in this perpetual twilight, vision is irrelevant; acoustic signals, instead, are how they navigate, ...

Have you ever wondered what sound a shark makes? Scientists at the University of Auckland in New Zealand believe they may have the first recording of a shark actively making noise. In a study ...

The ocean is a symphony of sounds, from the melodic songs of whales to the low thuds and groans of fish. Yet marine scientists have long assumed that sharks, a group of over 500 species, do not ...

The sea is a symphony of sounds from whale song to the guttural thumps and groans of a fish "drumming" an internal organ. But marine scientists have long thought that sharks, a group containing more ...