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Blood in the Water Facts

Randy has vanished, all Cliff and Red can see are bubbles of blood in the water.

Randy has vanished, all Cliff and Red can see are bubbles of blood in the water. (View larger version)

Photograph by Getty Images

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  • Sharks have been around for 400 million years.

  • Great white sharks can detect one drop of blood in 25 gallons of water.

  • Great white sharks can sense tiny amounts of blood in water up to 3 miles away.

  • Bull sharks have been found thousands of miles up the Amazon River.

  • White sharks are more active during daylight hours. Their feeding behavior has evolved to be very visually oriented.

  • Great white sharks use a variety of senses to find their prey. They use their olfactory sense in order to smell their prey; they taste the water and use their vision to spot silhouettes of the prey above them.

  • In Nicaragua, bull sharks have been witnessed leaping up river rapids like a salmon.

  • Great white sharks attack their prey from below or behind. They attempt to so badly wound their prey in the first attack that the wounded creature bleeds out so that the shark can devour it with ease.

  • Bull sharks are so named because of the short blunt snout that they use to ram prey before attacking.

  • White sharks use electrical receptors to locate vertebrates at the surface of the water.

  • Adult great white sharks are between 15 feet and 20 feet long.

1 comments
xu qian
xu qian

it is amazing,i learn a lot from the article. thank you very much!