A museum volunteer got an amazing surprise when he came upon the rare creature, just emerged from its chrysalis.
The North American population of monarch butterflies has decreased by 90 percent over the past two decades. Federal regulators are now considering giving the butterflies legal protection. Continue reading →
A species of butterfly uses its decorative flair for protection and also varies its color and intensity by season as predator types change.
A mysterious butterfly-shaped cloud spotted over St. Louis last week was built from actual butterflies.
Contest yields a stunning array of pictures of nature in action.
Butterflies come in an almost unimaginable number of colors -- whether taking flight or resting on a leaf, the showy insects deserve a showcase.
Long known for using a type of solar compass in the brain, the insects can also migrate when skies are overcast, suggesting a magnetic compass.
Tears are sort of like sports drinks, in that they contain various vitamins and minerals in a liquid solution. Continue reading →
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