Their sharp triangular teeth are heavily serrated and have an elongated dorsal fin that is easy to identify. Great Hammerhead ...

There are at least eight different species of hammerhead shark, and while fossil teeth evidence suggests that their ancestors may have existed 45 million years ago, molecular data points to a much ...

That is why shark teeth are the most abundant vertebrate fossil material on the Earth and in the sea. Scalloped hammerhead on the reef. NOVA: Do sharks have to keep swimming to breathe?

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 ...

These majestic sharks gather in their hundreds at huge volcanic ... and striking subordinates with the underside of their jaw, forcing them to the outer reaches of the circle.

Miami’s tony Star Island, a private enclave that’s long attracted A-listers, has a hot new and currently the only listing: ...

Recorded sightings may indicate other hammerhead sharks (Sphyrna zygaena ... Occasionally, they have dusky or black-tipped pectoral fins. Their teeth are "triangular and smooth-edged." The carnivorous ...

John Long is a palaeontologist who has studied in depth the 450-million-year history of sharks. When Professor Long joined ABC Conversations he schooled Richard Fidler on some impressive facts about ...

Their sharp triangular teeth are heavily serrated and have an elongated dorsal fin that is easy to identify. Great Hammerhead Sharks are found worldwide, mostly in shallow waters over continental ...

Recorded sightings may indicate other hammerhead sharks (Sphyrna zygaena ... they have dusky or black-tipped pectoral fins. Their teeth are "triangular and smooth-edged." The carnivorous ocean ...