Discover why knees crack and learn when to seek medical advice from experts on knee health and persistent sounds.

Popping, clicking, rattling—these sounds from our joints can be unsettling, but are they cause for concern? Orthopedic specialist Chris Gee, MD, demystifies these auditory oddities, highlighting when ...

The human body makes a myriad of noises, most of which are completely natural and totally harmless. That includes clicks, pops, and snaps from your joints as you move around, particularly during ...

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, ...

Researchers believe the sounds are made by the sharks snapping their flattened teeth together, possibly as a stress or warning signal. This discovery challenges the long-held belief that sharks are ...