I get more time than usual to draw the goldfish in the dentist’s waiting room and they’re not as fidgety as usual. No feeding frenzy.
Goldfish can see in ultraviolet in addition to the regular colours that we see. The small openings – called nares – that look like nostrils just in front of the eyes direct water over scent receptors. They’re not connected to the gills, so they play no part in respiration.
Small pits dotted along the lateral line are sensitive to pressure.