• Fish have been around for more than 450 million years - that’s well before records began - and that there are approximately 25,000 known species worldwide.
  • The plankton-feeding whale shark is the largest known fish in the world. It is found in the Atlantic, Pacific and Indian Oceans, and can grow over 40ft and weigh up to 20 tons.
  • Discovered only 3 years ago on the Indonesian island of Sumatra, the peodocypris is the smallest fish in the world at 7.9mm long.
  • The sailfish is the fastest fish in the world, while seahorses are the slowest.
  • Fish have first class touch, taste and sight senses, and a number of species have a good sense of smell and hearing.
  • Sharks are the only fish species to have lower and upper eyelids - but they don’t blink. As fish live in water, there is no need for them to have eyelids and blink.
  • During the Second World War, fish and chips were the only take-away food not to be rationed.
  • Fish navigate through dark or murky waters using their internal sense organ known as the lateral line.