Science: Crab Compass

Some scientists are neatness itself, but Professor Talbot H. Waterman works in a wonderful mess. His room at Yale's Osborn Zoological Laboratory is a tangle of wires, tubes, electrical equipment, optical instruments, pipes, tools and gadgets. And all over the place crawl the stars of the show: live horseshoe crabs. Dr. Waterman is trying to find out how arthropods (crabs, insects, etc.) navigate. The Office of Naval Research is so interested that it has him under contract.

Scientists know that certain arthropods, including horseshoe crabs and bees (TIME, Jan. 1), can steer by the...

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