Word: sperm
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...death lance churns into the sanctuary, tears The gun-blue swingle, heaving like a flail, And hacks the coiling life out: it works and drags And rips the sperm-whale's midriff into rags, Gobbets of blubber spill to wind and weather...
Fatheaded Whale. Last week a deep-diving laboratory was launched by the Electric Boat Division of General Dynamics Corp. in Groton, Conn. Christened the Aluminaut and looking for all the world like a fatheaded sperm whale, the craft is the world's first aluminum submarine. Its 51 -ft. hull consists of eleven forged cylinders. Since aluminum's strength-to-weight ratio exceeds that of steel, the Aluminaut's 6½-in.-thick shell will withstand pressures of 7,500 lbs. per sq. in. at the sub's 17,000-ft. maximum diving range. At the same...
Although no one yet knows just how IUCDS prevent conception, it is certain that-unlike the diaphragm, which covers the cervix-they do not prevent passage of the sperm into the uterus and along the Fallopian tube to meet the egg. Since they definitely trigger excessive contractions of the uterine muscles and of the Fallopian tubes, they may cause displacement of the egg before it has time to be fertilized or to settle in the wall of the womb...
Once scientists learned the technique of artificial insemination in both animals and humans, they seemed within possible reach of an exciting goal: selection of the sex of an infant before conception. But how to separate sperm that produce female offspring from those that produce males? Various methods, such as the use of electric fields or care ful temperature control, produced only minimal results. Then, in India, Zoologist Bhairab Chandra Bhattacharya noticed that the upper portion of a sperm sample tended to breed more bulls; the lower portion gave more cows. Apparently this was because the sperm that produce female offspring...
...improve the process, Bhattacharya moved to the Max Planck Institute for Animal Breeding at Hagen, Germany, where he went to work under the direction of Zoologist Gham Gottschewski. Using rabbits, which are not only cheaper than cattle but much quicker to breed, he inseminated thousands of does with sperm that had been allowed to settle under varying conditions. His early results were not promising, but after three years of experimentation he hit on a winning combination. He mixed rabbit sperm with egg yolk and glycol, and stored the solution for twelve hours in a refrigerator at slightly above the freezing...