Noise —unwanted and/or harmful sound— is an underappreciated environmental stressor. Exposure to excessive noise from transportation, construction, outdoor power equipment, industrial machinery, ...

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 document a rig shark's vocal capabilities in a University of Auckland experiment conducted between May 2021 and April 2022. Click. Click. Click. Marine biologist Dr. Carolin Nieder, ...