Fish Facts

There is a huge diversity of life that exists in the water and there is so much to learn about fishes and marine life.

Here are some interesting facts relating to fish:

  • Some fish, such as the Great White Shark, can raise their temperature when they are hunting in the cold sea.
  • The oldest known age of a fish, was 65 years old. This was an Australian lungfish.
  • Jellyfish and starfish are not actually fish.
  • Electric eels’ electrical rays are so strong that they could kill a horse.
  • The only fish that have eyelids are sharks.
  • Most fish are known to have taste buds all over their body.
  • A fishing hook has been discovered that is 42,000 years old.
  • Most fish can see in colour.
  • Fish will use colour to camouflage themselves.
  • Fish can also use colour to defend their territory.
  • When a fish grows it does not add new scales, their original scales just increase in size.
  • Most fish are not able to swim backwards, however, fish from the eel family can.
  • Seahorses are the only fish which are able to swim upright.
  • A seahorse is also the slowest fish. Humans are sometimes not able to tell if it is moving because it is so slow.
  • It is believed that there are approximately 32,000 different kinds of fish currently.
  • Sharks and some fish do not have an air bladder to help them stay afloat, so they have to swim continuously or rest on the bottom.
  • Fish are not able to chew.
  • Most fish are known to be cold-blooded.
  • Fish are not able to blink.
  • Goldfish have teeth.
  • Goldfish are able to hear; however, they are not able to respond back.
  • Whales have belly buttons.

Learn more

If Fish and Marine Life fascinate you, we have plenty of courses for you to study, whether you are keeping an aquarium at home, running a pet business, or looking for professional development and training for your career.

If you have any questions, or would like to know more, we would love to hear from you. Our contact details can be found at the top of this page and on our Contact page, or you can connect with our tutors by submitting the Course Counselling form accessed from the link on the left of this page.

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