An insect that went extinct more than 120 million years ago featured many of the traits associated with modern butterflies, including eye spots.
2015 was a year of both breathtaking highs and devastating lows for the animal kingdom.
Actions taken by the United States, Mexico and Canada to protect the migratory species are having a positive effect.
September through November marks the annual autumn journey of the winged beauties, as they make their way to winter homes in California and Mexico.
Neither busy bees nor workhorses made the list. Can you guess which animals did?
See the several butterfly species that are predicted to go extinct in our lifetimes.
The Albany Pine Bush Preserve in New York holds within it a rare species: the endangered Karner blue butterfly.
The White House will wait to issue rules on pesticides on bee colonies until the EPA's studies are concluded.
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