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Observe how two species of shrimps live together while the smaller species become prey to the bigger species

Observe how two species of shrimps live together while the smaller species become prey to the bigger species

Two species of shrimp living in close proximity to an undersea vent near the Mariana Islands. The smaller species grazes primarily on bacterial mats at the hydrothermal sites, whereas the larger species apparently preys on the smaller.
Major funding for this expedition was provided by NOAA Ocean Exploration Program and NOAA Vents Program; video clips edited by Bill Chadwick, Oregon State University/NOAA
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Transcript

SPEAKER: I find that we've been watching these shrimp eat shrimp. There's--there's been about five or six of them go by holding another shrimp. We watched two dismember them. And what . . . yeah . . . and I . . . well. So I spent . . . well that's . . . that I can't tell what he's holding, but I got a pretty good guess, because I look--look in here, and these are all the same species, and they're--and they're all the . . . now they're the carnivores. Now if you're a carnivore and you have a big meal, like us, you don't have to eat all the time, right? You just hang out watching TV. Now, if you go over here and ya look down here . . . yep . . . and there's a little bit of fluid flow. You see the little bit of bacteria. These guys . . . yep . . . so that's all the . . . that's right . . . that's all the other species. And I think these are the prey of the other guys.