A team of behavioral ecologists from the Leibniz Institute of Freshwater Ecology and Inland Fisheries (IGB) and the Humboldt-Universität zu Berlin (HU Berlin) is investigating how animals hunt in groups. Animals in water hunt differently than animals on land, which is partly due to the different size ratio between predator and prey. One example is striped marlin, which belong to the billfish family. Motivation may play a greater role than dominance hierarchy during resource division, but the large fish get out-competed by sea lions when the two predators attack the same prey.
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Source: Phys.org