Dr. Peter Klimley is a man who has held his breath and dived down 100 feet to hand-tag hammerhead sharks with a dart gun. He has even dressed up as a killer whale, complete with towering black ...

Almost 20 years ago schools of hundreds of hammerhead sharks were seen at the seamount of El Bajo. Since then, the population has seen a decline. Worldwide many tens of millions, possibly over 100 ...

Hammerhead sharks can hold their breath to survive almost freezing-cold waters during deep dives, a study has found. The study, published in the peer-reviewed journal Science on Thursday ...

I was once at the surface playing low-frequency sounds over a speaker to attract sharks. A hammerhead shot up from beneath me, rushing at me at perhaps 30 feet a second before he suddenly turned ...