Uncategorized

  1. Humans

    Letters from the August 6, 2005, issue of Science News

    Empty threat? “Empty Nets: Fisheries may be crippling themselves by targeting the big ones” (SN: 6/4/05, p. 360) reads as if there is something to be alarmed about. By selectively catching large fish, we have reduced “the mean size [of food fish to] one-fifth of what it was.” This is not cause for alarm. It […]

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  2. Math

    Playing with Ruth-Aaron Pairs

    Home-run records lead to intriguing prime-number patterns.

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  3. Earth

    Life thrived below solid ice shelf

    A survey of a segment of Antarctic seafloor that until recently had laid beneath a thick, floating ice shelf for thousands of years has revealed an ecosystem apparently based on chemical nourishment, not sunshine.