About 20 thousand different types of fishes are known but there are many more fishes living very deep in the ocean where it's difficult to study them. Some fishes live more than 10 kilometre below the surface of the sea.
How they breadth: through the entrance of their bodies called gills as the water passes over the gills, oxygen is taken out of thr water and into the bodies of the fishes.
How they swim: by flapping their tails from side to side sometimes very fast.
Tuna and some sharks can swim at 80km.
Do they sleep : they don't have eye lide so they cannot close their eyes but most do rest.
Which is the biggest: whale shark which can be 7metres long, and the smallest is the goby which is 1cm long.
Which is the most dangerous fish : shark the greatest white shark is the most dangerous, most shark don't attack people, some will, some fishes live up to 50 years. In Japan they eat alot of (uncooked) raw fish. That is why there are more very old people in Japan. A fisherman from Japan shigecho was 120 yrs when he died. Lastly a blue whale weighs as much as 1900 men
How they breadth: through the entrance of their bodies called gills as the water passes over the gills, oxygen is taken out of thr water and into the bodies of the fishes.
How they swim: by flapping their tails from side to side sometimes very fast.
Tuna and some sharks can swim at 80km.
Do they sleep : they don't have eye lide so they cannot close their eyes but most do rest.
Which is the biggest: whale shark which can be 7metres long, and the smallest is the goby which is 1cm long.
Which is the most dangerous fish : shark the greatest white shark is the most dangerous, most shark don't attack people, some will, some fishes live up to 50 years. In Japan they eat alot of (uncooked) raw fish. That is why there are more very old people in Japan. A fisherman from Japan shigecho was 120 yrs when he died. Lastly a blue whale weighs as much as 1900 men
