National Geographic : 1957 Jan
() National Geographic Society 17 Shark's High Fin and Saw Teeth Lose Their Dread Prospect out of Water More than 100 species of sharks frequent Australian waters; at least eight of them are considered man-eaters. Although the menace of these nearsighted, wary creatures is sometimes exaggerated, visitors to the reef are advised to stay out of the water during rising tide, when hungry sharks venture into the shallows to feed. This six-foot bronze whaler shark was caught off Heron Island on a rope-and-chain setline. + Shark teeth grow in rows, moving forward to replace those lost or damaged. This kingfisher, resting in a tiger shark's jaw hung up to dry, is a cousin of Australia's famed kookaburra, or laughing jackass bird.