Word: sperms
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Dates: during 1950-1959
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...sperm whales, try to listen to them, will you?" These were about the last words heard by the crew of the research vessel Atlantis before casting off last spring from the Woods Hole (Mass.) Oceanographic Institution on a voyage to trace currents in the Atlantic. They were shouted at dockside by tall (6 ft. 1 in.), intense Harvard Zoologist William Edward Schevill...
...startled by Schevill's request. He is always asking colleagues to eavesdrop on sperm whales-not when the whales are puffing and blowing on the surface, but while they are submerged. Schevill wants to pin down once and for all the ancient reports that big (up to 65 ft.) sperm whales "talk" to each other beneath the surface, although they have no vocal cords. Last week's issue of the British magazine Nature carries a report by Schevill and L. Valentine Worthington, an oceanographer on the Institution's Atlantis, that produces scientific evidence to support what oldtime...
Click. Click. Click. Off North Carolina, Worthington was manning an echo-sounding receiver on a regular project when he heard a loud hammering. "Cut out the racket," he yelled. "I can't hear a damn thing." After everyone on board lad indignantly denied hammering, a herd of six sperm whales slowly broke water near...
...discarding a defective fetus." But Dr. Javert and colleagues at New York Hospital made microscopic examinations of 2,000 aborted fetuses, found no abnormality in 22%. In nearly all these cases he suspected some fault in the mother's physical or psychic setup (cases attributed to defective sperm were exceedingly rare). One astonishing statistic, suggesting factors introduced by marriage: while 10% of married women abort, only 1% of unmarried women do so. Also surprisingly uncommon (seven cases in 2,000) was injury as a cause of abortion. "Nearly all pregnant women sustain some type of external trauma...
...They are all following the same basic way of life. The adult consists of a "head" (scolex) that clings with hooks and suckers to the host's intestine. Below the head is a short neck that grows continually and differentiates into segments that become filled with eggs and sperm as they mature. The younger segments are chiefly male, and their sperm fertilizes eggs released by older segments farther downstream. A single worm can do the whole job and sometimes produces several billion eggs in its lifetime...