The shiny blue berries of the tropical Pollia condensata plant rely on their looks, not nutritional content, to attract birds to spread their seeds.
Silvia Vignolini et al. via PNAS
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Striking Chicago Public School teacher Lanessa Mendoza pickets with fellow teachers Monday as Mayor Rahm Emanuel visits students staying at Maranatha Church in Chicago during the strike.
M. Spencer Green/AP
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Egypt's stock market has been volatile since Hosni Mubarak was ousted. Though analysts say there are reasons for cautious optimism, concerns about the country's currency remain.
Khalil Hamra/AP
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The Rev. Roberto Arciniega, head of Latino ministries for the Episcopal Diocese of Oregon, says the denomination must reach out to Latinos to stay relevant in a multicultural society.
Chris Lehman for NPR
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