Until March 1
Vote for one of six astronomical objects for the Hubble Space Telescope to observe in honor of the International Year of Astronomy. See the candidates at youdecide.hubblesite.org

March 6
“Sacred Waters: India’s Great Kumbha Mela Pilgrimage” opens at The Field Museum in Chicago. Learn more at www.fieldmuseum.org

April 24
Arbor Day will be celebrated across the United States.
Visit www.arborday.org

The (-est)

White eyes disperse to form new species faster than any other known birds. These “great speciators” diversify into between 1.95 and 2.63 species per million years, often failing to maintain gene flow across water gaps as narrow as a couple of kilometers, a team reports in the Feb. 10 Proceedings of the National Academy of Sciences.

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