Rumkin Trivia

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Marine Life

  • 2006-10-23: If you stroke a shark from nose to tail, it is smooth. If you go the other way, it is rough and some species will cut your hand.
  • 2006-10-23: Killer whales are not technically whales. They are orcas, a relative of the porpoise and dolphin.
  • 2006-05-24: Pufferfish and some sharks can blink their eyes.
  • 2006-05-09: Orcas (killer whales) kill sharks by torpedoing up into the shark's stomach from underneath, causing the shark's abdomen to rupture.
  • 2006-05-09: Sharks can sense 1 part of blood in 10 billion. That's the equivalent of one drop of blood in an Olympic-sized swimming pool.
  • 2006-05-09: The averages vary slightly, but only 3 to 6 people die annually due to shark attacks.
    On the other side, 30-60 million sharks are killed annually by people.
  • 2006-05-09: Sharks have eyelids called nictatating membrane. The great white does not; instead it has a cartilage-based protective structure on its eyes, which is exposed by rolling its eyes forward.
  • 2006-05-09: The Mako is the fastest shark, clocked at 35.4 kph (22 mph).
  • 2006-05-09: The smallest shark is the dwarf lantern shark, which is 15 cm (5.9 in) long.
  • 2006-02-10: A blue whale's heart beats nine times per minute.
  • 2005-08-12: A sperm whale has a brain that weighs 7.8 kg (17.2 lb), but that is only 0.02% of its body weight.
  • 2005-08-12: A sperm whale's tooth is the size of a big peanut-butter jar.
  • 2005-07-14: Pearl Harbor gets its name from the abundant supply of pearl oysters that inhabit it.
  • 2005-02-04: The catfish has over 27,000 taste buds, which is more than any other animal.
  • 2005-02-03: Blue whales can produce sounds that are over 185 decibels. That's nearly twice as loud as a jumbo jet taking off.
  • 2005-01-27: A 30 kg (70 lb) octopus can squeeze through a hole the size of a silver dollar (a diameter of 3.8 cm / 1.5 in).
  • 2005-01-27: A manned rocket reaches the moon in less time than it once took stagecoaches to travel the length of England.
  • 2005-01-10: The embryos of tiger sharks fight each other while in their mother's womb; the survivor is the baby shark that is born.
  • 2004-12-08: A shark can detect one part blood in 100 million parts water.
  • 2004-12-08: In South Africa, a fish known as the payara has saber teeth that are 5 cm (2 in) long. A common bait used to catch these freshwater fish is a small piranha.
  • 2004-10-20: The "four-eyed" fish (Anableps) has two pupils in each of its eyes. Therefore, it can see above the water and below the water simultaneously.
  • 2004-10-11: There are about 170 million neurons in the brain of an octopus. A human brain has 100 billion or so.
  • 2004-10-04: The pufferfish, eaten as a delicacy in Japan, contains a potent neurotoxin called tetrodotoxin.
  • 2004-09-28: The sponge is the only multicellular animal without a nervous system.
  • 2004-09-27: Unlike humans, the octopus does not have a blind spot.
  • 2004-09-03: Only 1 in 1,000 animals born in the sea survives to maturity.
  • 2004-08-26: Atlantic salmon are capable of leaping 15 feet high.
  • 2004-07-19: Of the 250+ known species of shark, only about 18 are known to be dangerous to humans.
  • 2004-07-19: There is no species of fish called the sardine. Usually small herring or pilchard are processed as sardines.
  • 2004-07-19: Mussels can survive in polluted water because of an inborn ability to purify bacteria, fungi, and viruses.
  • 2004-06-07: Scientists found a whole new phylum of animal on a lobster's lip.
  • 2004-04-29: Fish can drown if there is not enough oxygen in the water.
  • 2004-04-27: Oysters can change from one gender to another and back again.
  • 2004-04-27: Squids can have eyes the size of volleyballs. The giant squid has the largest eyes in the world.
  • 2004-04-27: The starfish is one of the few animals that can turn its stomach inside out. The process is called gastric eversion and some frogs, some fish, and the whale shark can do it as well.
  • 2004-04-27: Dolphins can jump up to 20 feet in the air.
  • 2004-03-15: Earth's oceans cover 70% of the planet, contain 97% of the world's life, and are 95% unexplored.
  • 2004-02-03: There are about 21,000 varieties of fish on Earth.
  • 2004-01-27: The whale shark is the largest of all shark species. It averages 25 feet in length. It is also one of the least dangerous sharks around -- it is a filter feeder and eats only plankton.
  • 2004-01-27: The whale shark is the largest fish in the world.
  • 2004-01-20: Shrimp can only swim backwards.
  • 2004-01-19: If you keep a goldfish in a dark room, it will eventually turn white. Don't make the room pitch black, since their pupils will permanently dilate and they will go blind.
  • 2003-12-09: Fish cough.
  • 2003-12-09: Fish have eyelids.
  • 2003-12-01: A jellyfish is 95% water.
  • 2003-12-01: Sharks have no bones. They are basically cartilage, muscle, and teeth.
  • 2003-11-10: The skin of sharks was once sold and used as sandpaper.
  • 2003-11-06: The lungfish can live out of water for as long as 4 years.
  • 2003-10-17: An electric eel can produce about 600 volts and about 1.083 amps of power, producing a total of 650 watts of current.
  • 2003-10-17: An electric eel can stun a horse.
The word Minnesota is a Dakota word "minisota" meaning "sky tinted waters." Tyler Akins <>
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