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image: Image of the Day: <em>E. coli</em> Hunter

Image of the Day: E. coli Hunter

By | June 27, 2013

The Shiga toxin may help E. coli survive predation by the protist Tetrahymena.

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image: Image of the Day

Image of the Day

By | October 29, 2012

The Psyche (Leptosia nina) butterfly, shown here as a mating pair, is a weak flyer, making erratic movements as it bobs across the grass and rarely leaving ground level.

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