Tracking seed-dispersing piranha in the Amazon

Fish are probably not the first animals that leap to mind when thinking of seed dispersers. Squirrels are well-known examples, but researchers have recently tracked a species of frugivorous—that is, fruit-eating—piranha in the Amazon that distribute seeds over more than five kilometers of flood plains. As Daniel Cressey described in a Nature News article, “Although fish have long been suspected of having an important role in seed...

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Peruvian boobies have the advantage as solitary hunters

Just off the coast of Peru, the Humboldt Current produces one of the most productive marine ecosystems on the planet. Humans and animals alike have based their livelihood on the abundance of marine life that results from the deep, nutrient-rich waters of this coastal upwelling. Seabirds, which gather in massive groups off the coast to prey on schools of fish, have been completely sustained, until recently: Anchovy decline from overfishing and El Nino’s warmer waters have led to a major drop in seabird populations. One resilient bird, however, has held steady due to its solitary hunting style.

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