SUPER B: There are more species of bony fishes in the world than all other vertebrates combined. The total number of fish species living in the sea is more than 22,000. It is hard to tell an exact number because not all the species have been discovered yet. Some species may have been counted twice because the males and females look so different, and some may have been counted twice because the young and old look so different.
SUPER B: Well the main reason a dolphin would swim a long distance is to find food. While some dolphins can reach speeds of 18 to 22 mph for short bursts, most swim along at about three to seven mph. At that speed, with rest periods included, a dolphin would have the ability to swim about 100 miles in a day. Some dolphins, however, travel within a smaller area called home range.
SUPER B: This is a very good question, one that scientists are still researching. There is a fish called the Killifish that lives less than one year. It lays its eggs in temporary waters that dry up each season. The Catalina Goby is another fish with a short lifespan. This fish only lives for a year or two. In comparison there are the Groupers. Some species of Groupers may live 20, 30, or 50 years. Some scientists believe that Groupers may live to be 80 to 100 years old.
SUPER B: 40% of all fish inhabit fresh water, yet less than .01% of the earth’s water is fresh water.
SUPER B: Some fish, like sharks, don’t posses an air bladder to help keep them afloat and must either swim continually or rest on the bottom.
SUPER B: The average consumption of tuna in America is 3.6 pounds per person, per year, most of which is canned.
SUPER B: The smallest fish is the Philippine goby that is less than 1/3 of an inch when fully grown.
SUPER B: The fastest fish is the sailfish. It can swim as fast as a car travels on the highway.
SUPER B: Fish have a specialized sense organ called the lateral line which works much like radar and helps them navigate in dark or murky water.
SUPER B: The oldest goldfish recorded was 43 years old!
SUPER B: The oldest known age for a fish was an Australian lungfish. In 2003, it was still alive and well at 65 years old.
SUPER B: The study of the history of fish is known as ichthyology.