Other Topics

Classification | Conservation | Behavior | Diet | Teeth

Classification

Shark family tree, "Who's Who of Sharks" by Jennifer Uscher. For hammerheads, click Carcharhiniformes then scroll down to Sphyrnidae.

In Search of the Golden Hammerhead by R. Aidan Martin, ReefQuest Centre for Shark Research, from his wonderful Topics in Shark Biology.

Recent Changes in Hammerhead Taxonomy, by R. Aidan Martin, originally on Shark-L.

Conservation

"North Atlantic Sharks On Sharp Decline" by Cameron Walker, National Geographic News (Jan. 2003)

"Hammerhead sharks showed the most serious decline with an 89 percent decrease in population since 1986."

Horror Gallery: Why sharks have to be protected. Small but powerful photos of hammerheads caught in fishing nets, finned and otherwise killed for no good reason.

Behavior

"Do Hammerheads Follow Magnetic Highways in Migration?" by Brian Handwerk, for National Geographic News (June 6, 2002). Do hammerheads use sea-mounts as electro-magnetic stepping stones?

Amazon. The Secret Life of Sharks: A Leading Marine Biologist Reveals the Mysteries of Shark Behavior by A. Peter Klimley.

Science News book review (July 12, 2003).

"After three decades of shark research, most specifically with hammerheads and great whites, Klimley sees sharks as surprisingly intelligent animals that carefully choose their prey, navigate long distances with unerring precision, and have complex social relationships."

Science Blog on Klimley's on a recent fatal great white attack.

General: International Shark Attack File. Stats and a map illustrating all "confirmed unprovoked shark attacks" since 1670. Stay away from Florida, Hawaii. Go to Connecticut.

It's Hammer Time, a "Hammerhead Smorgasbord." Looks okay, but you have to register. Interesting tidbit on hammerhead science:

"Researchers, using only mask and snorkel, have accumulated more information on the social behavior of the scalloped hammerheads than any other shark species."

Diet

Feeding Ecology of Scalloped Hammerhead sharks from the Hawaii Institute Of Marine Biology.

Hammerhead attacks tarpon. Action text and photos by Ben Taylor.

Teeth

Fossil hammerhead tooth info, from Brownie's Beach Fossils, Edwin Huizinga's site about fossil-hunting off Brownie's beach, MD. See also this page on Shark tooth fosils.