Barrel jellyfish may hunt with new kind of math

By Ashley Yeager, 18:36 PM August 5, 2014

Barrel jellyfish are big. Weighing almost 30 kilograms, the creatures need a lot of food to fuel their massive size. As a result, the gelatinous blobs spend a lot of time floating up and down in their home waters, with movements that change over time.

Because the jellies' movements didn't seem to be consistent, scientists didn't think Rhizostoma octopus sought food using Lévy walks, a series of small steps mixed with long hops that have been shown to be an efficient foraging strategy for hone...

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