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Body & Brain

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Candida tropicalis

SHAPE SHIFTER  Candida tropicalis usually grows as a harmless roundish budding yeast (green), but in the presence of two bacteria it stretches into long filaments (brown) that may provoke inflammation in intestines.

Schmidtea mediterranea

DANGER DETECTOR  In planarians (Schmidtea mediterranea shown), a protein called TRPA1 detects hydrogen peroxide, a molecule produced when cells are damaged. These new results give hints about the evolution of human pain.

Bugula neritina

MARINE MEDICINE A bryozoan called Bugula neritina, shown here, is a natural source of bryostatin 1, which has been studied as a potential drug for many years.

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