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"The freshwater sticklebacks evolved from saltwater ancestors who were landlocked less than about 17,000 years ago at many locations across the Northern Hemisphere. For this reason, differences among freshwater and saltwater sticklebacks represent recent and rapid evolution among a well-known group of species and are thus especially interesting to scientists." From +Greg Laden
When housed in an aquarium with a swirling robotic school, what determines whether a fish will join the crowd?
Nauka Znanost's profile photoNE-MWI Mississippi River Basin Policy News's profile photo
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