Plant vs. Predator
"When it happens, they reproduce like crazy," Dan Janzen says of the rats, pigs, and wild chickens that evolved to take advantage of the mass fruiting of Melocanna baccifera and similar species of bamboo. Above, Janzen with "Espinita," a prehensile-tailed porcupine that shared his life until she, as he put it, "took the boat to Valhalla."