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 ...

Climate change is making lakes less blue

If global warming persists, blue lakes worldwide are at risk of turning green-brown, according to a new study which presents the first global inventory of lake color. Shifts in lake water color can indicate a loss of ecosystem ...

How songbirds' striking colors put them at risk

Bright, uniquely colored songbirds are at higher risk of extinction and more likely to be traded as pets, according to researchers reporting in Current Biology on September 15. The researchers also predict that almost 500 ...

Red giant Betelgeuse was yellow some 2,000 years ago

An interdisciplinary team centered around a Jena astrophysicist utilized observations from antiquity to prove that Betelgeuse—the bright red giant star in the upper left of the constellation Orion—was yellow-orange some ...

New model for analyzing color vision in aphids

Aphids are one of the least welcome garden visitors. These small insects can cause substantial damage in agriculture, but how do they actually choose their host plants? What are the basic mechanisms behind this? Researchers ...

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