Boo! How Do Mexican Cavefish Escape Predators? (VIDEO)
Caption
To assess differences in responsiveness to acoustic stimuli, researchers quantified the probability of C?start initiation in surface fish and Pachón cavefish at multiple vibration intensities. They produced acoustic stimuli that then provoked startle responses. Researchers recorded 1,000 frames per second - the videos are slowed down to 1/30 of the speed. The red light allows researchers to know when exactly the acoustic stimulus is occurring. They strategically placed and covered it so that it was visible to the camera, but not the fish. This allowed the researchers to make precise measurements of exactly how much times passes between the stimulus starting and the fish responding.
Credit
Alexandra Paz
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Credit: Alexandra Paz
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