Crowding-induced stress gives mackerel the blues

When mackerel die, they change color from green to blue. After seeing that live mackerel can also turn blue, a team of researchers wondered if this was because the fish were under stress. Their concerns proved to be correct.

Popular herbicide weakens bumblebees' color vision

Finnish researchers found out how Roundup, a herbicide containing glyphosate, affects the learning and memory of bumblebees. Already a small dose affected their ability to learn and memorize connections between colors and ...

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