More than a fanciful shark-octopus hybrid featured in low-budget sci-fi films of the 2010s, the "sharktopus" has been spotted in real life - well, kind of. The sighting was not that of some mish ...

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 in New Zealand saw a colorful blob on top of a shark’s head. When they looked closer, they realized it had eight arms. By Melissa Hobson When she spotted the mako shark in the ...