Video clip of one of the hydra-with-a-bud wafting about in the current:
Click to view
Or maybe she shared it? Evolutionary survival strategy, let your buds take snacks from your tentacles so they grow up faster and stronger. It's about four minutes of video - I was trying to get the bud swallowing the zooplankton, but it takes about ten minutes apparently - nothing much happens after the first two and a half minutes:
Click to view
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