Sunday, June 26, 2011

Taxis (Biological)

Rummynose tetra: Hemigrammus rhodostomus
1 Central Wharf, Boston, MA
This is an example of rheotaxis, which is the response of aquatic organisms to currents. In the aquarium, they were alternating the currents to watch the fishes' response. Here the current was from left to right, and the fish automatically flipped around to face it.

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