The gills of a healthy fish are bright red; this is because blood is flowing through them.
Gills, Scales, Color
Fish gills are typically red due to the presence of hemoglobin, a protein that carries oxygen in their blood. Hemoglobin binds to oxygen, giving the gills a reddish color. This helps the fish efficiently extract oxygen from water as it passes over their gills.
i think it is red. Or they can be any colour its depending on the fish
Fish Use Gills Instead of lungs. Gills Help fish to Breath. Fish Use Gills Instead of lungs. Gills Help fish to Breath.
all fish have gills
yes all fish have gills.
gills.
gills
gills
All fish have gills. Their gills are like lungs. And if they didn't have gills they would die.
Sea otters do not have gills because they are mammals.
Fish use gills to extract oxygen from the water passing over the gills.