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National Geographic : 1970 Aug
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Life explodes in a burst of beauty M icroscopic galaxy of starlike Asterionella diatoms (left) spangles pond waters. These one celled plants, linked in a radialpattern, lie dormant in winter and burgeon in the spring, sometimes turningponds yellow. With them in the watery firmament float a rectan gular stack of Fragilaria diatoms and a rotifer egg. With its trunklike extension, the waterflea Bosmina (above), a crustacean about a fiftieth of an inch long, resembles the head of an elephant. A female copepod (right) carries on the sides of her abdomen packets of eggs that may yield some 40 young. 200 TIMES LIFE-SIZE 287
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