These intimidating but misunderstood creatures have been frequenting shallow waters at a much higher rate in recent years.

In the study, researchers detail evidence of the rig shark – a small species found ... at the Swedish University of Agricultural Sciences recorded two species of stingrays making clicking ...

In a first, researchers have recorded what could be a shark making deliberate sounds. A small shark from New Zealand, called a rig or spotted estuary smoothhound, grows rows of flattened teeth ...