One of the most beautiful creatures that inhabit earth is the various sea creatures. The fish whether in a fish tank, in the ponds and lakes, rivers and seas or the oceans have been a subject of study and wonderment since ages. Scientists and researchers are studying marine life.

Here are some interesting fish facts that have been contributed by various marine scientists and researcher.

  • According to various findings, scientists believe that fish have inhabited earth for over 450 million years.
  • According to experts fish are the oldest creatures having belonged to the age before the dinosaurs roamed on earth.
  • Experts have recorded and identified over 25,000 species of fish.
  • According to marine biologists there are more than 15,000 species of fish that have not been identified as yet.
  • The number of fish species far outnumber than all those of amphibians, reptiles, birds and mammals put together.
  • 40 per cent of the fish species swim in water. The fact remains that less than .01 per cent of the planet’s water is fresh water.
  • There is a species of fish called the spotted climbing perch, which can absorb oxygen from the air and crawl on land, breathing with the use of its pectoral fins that are rather strong.
  • Some species of fish make sounds by the grating of their teeth. There on the other hand others that makes sounds with the help of their swim bladder, which is filled with air.
  • There are some fish that can glide, while others skip along the surface. There are some that can also climb rocks.
  • The biggest fish is the great whale shark that can grow up to the length of fifty feet.
  • The tiniest fish is the Philippine goby, which when fully grown is less than one-third of an inch.
  • Fish experience pain and stress like mammals and birds.