The dark spots on the leaves of these tomato plants are a symptom of infection caused by the plant pathogen Pseudomonas syringae. The bacteria spread infection by water-logging the spaces between cells in the plant’s leaves, creating a moist, cozy place to feed and multiply. Credit: Goldlocki, Wikimedia Commons
Without a mirror, it can be hard to tell if you’re blushing, or have spinach in your teeth. But one color-changing fish has evolved a clever way to keep watch on the parts of itself that lie outside its field of view -- by sensing light with its skin. Credit: James St. John, via Wikimedia Commons
From left to right, colleagues Dr. Nicolette Cagle, Nick Schwab, Dr. Daniel Rittschof and Dr. Don Fox work with small critters as part of their work at Duke.