Different fish have different life expectancies, from just a couple of months to over 50 years.
Fish have special eyes that allow them to see underwater. Some fish can even see ultraviolet light (which the human eye cannot detect).
Fish have gills that allow them to breathe. Water will pass through these gills and the oxygen will be extracted and pushed out.
A fish’s scales are usually slimy to touch. This helps them swim quickly through the water.
Fish have the ability to detect electrical pulses from nearby creatures. These electrical pulses are caused by contracting muscles or heartbeats.
Nearly 33,000 species of fish have been discovered.
Fish can drown if there is not enough oxygen dissolved in the water.