Word: robertson
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...Maybe we just don't know how to win too well." Sandy Robertson, president of the Harvard Rugby Club, said yesterday...
...best game the team as a whole played all year--a really great team effort," said club president Sandy Robertson He singled out Tew however, for playing an outstanding game...
...ball was slippery. Robertson said. In conditions like this it becomes a game for the forwards and the kickers. Adrian did an excellent job for us kicking...
Over a period of 25 months, Robertson studied 19 different harems of L. dimidiatus and recorded 48 instances of sex transformation. "Probably all females are capable of changing sex," Robertson writes in Science, "and most (possibly all) have testicular elements within perfectly functional ovaries." What prevents wholesale sex transformation by the females in a harem is a chain of authority extending downward from the lone male. A former female (like most other males of this species), he bullies the strongest female, who in turn is overbearing toward the female under her, and so on down the social scale. As long...
...development of a male from a functional female) is not uncommon among other kinds of tropical fish. But the rigid hierarchy of the wrasse harems represents a much more stringent control over the production of males than is found in the comparatively random sex reversals of "schooling" fish. Robertson believes that the inbreeding produced by this aquatic pecking order is genetically advantageous to the species. Because "the social organization is a framework within which the selective process works," he concludes, the genes passed on by each male wrasse are those best adapted to the environment of the harem...