By John Crompton
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Extra info for The Hunting Wasp
Eel's vnIulI. ailcxi,-. iisory pits in the eel's the eel where the fish is, how big it is 49 GLOWWORMS TAKEN THROUGH suggest first, more about made by the Austrian physiologist Exner, in 1891 The Sense of Among different In birds, sigiit EYES, these photographs insect vision than they in fact show. Sight— New is hearing do. Fishes can be said upon smell and taste. mations of the images as uses all of these senses, but again, as with other animals, one sense dominates, and this sense, of course, sight.
Of even his and often in- difi'erent kinds of bias but to incomplete accurate information about the Mans understanding own eye has been amazingly slow in com- THE ACTUAL FACETS OF A GLOWWORMS EYE— not seen in — show up here in a 1963 photothe old photographs opposite graph of a young woman by the science photographer Roman Vishniac. To prepare the eye, Dr. Vishniac had first to clear away all nerves and muscles with tiny needlelike spines from a fresh-water sponge, a task that took about 18 hours to finish.
The openings of these holes are covered by membranes, which are pushed in or out very slightly by expansion and compression of air the holes —according water the holes are. to how in deep in the In the enlargement below, the upper hole, near the scorpion 'j head, is subject to less water pres- sure than the lower one, The near slight disturbance of the its it IS obstacles like trees, walls and even flying insects, this keeps the bat informed, as sonar does a submarine, of things in way and its membranes headed up toward the surface.
The Hunting Wasp by John Crompton