Editors' ChoiceSensory Perception

Hold Your Breath or the Catfish Will Find You

Sci. Signal.  10 Jun 2014:
Vol. 7, Issue 329, pp. ec157
DOI: 10.1126/scisignal.2005571

Finding prey is hard enough in the light of day, but animals that are nocturnal or live in murky conditions face even greater challenges. Caprio et al. describe a sense that allows a marine catfish to detect the mere “breathing” of their prey target. External sensors on the catfish's whiskers detect pH changes generated by hidden, respiring polychaete worms.

J. Caprio, M. Shimohara, T. Marui, S. Harada, S. Kiyohara, Marine teleost locates live prey through pH sensing. Science 344, 1154–1156 (2014). [Abstract] [Full Text]