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Sharks lack color vision. This is common across most marine organisms. Sharks Skates And Rays It can only see in black and white so swimmers would be best off wearing a light blue wetsuit that matches the colour of the water. Can sharks see color . We ll get back to that. Navy has conducted tes…

The rete mirabile utilizes countercurrent blood flow within the net blood flowing in opposite directions to act as a countercurrent exchanger. The second largest fish is the. Countercurrent Gas Exchange In Fish Gills Youtube In fish and some molluscs the efficiency of the gills is greatly enhan…