“They swim rapidly, describing incessantly capricious circles. These movements have gained for them the name of Whirligigs. They have four eyes, the lower ones looking into the water, while the upper eyes look upward toward the air.”
Hazlitt Alva Cuppy PH.D., Editor Beauties and Wonders of Land and Sea (Springfield, OH: Mast, Crowell & Kirkpatrick, 1895)
2130×2400, 1.6 MiB
908×1024, 100.1 KiB
568×640, 47.7 KiB
284×320, 17.7 KiB