Flowers often need reproductive help from birds and bees, not to mention bats, moths, lizards and primates.
Chilly interruptions of spring revelry may someday disappear as the planet warms. Continue reading â†’
Around the planet, people look forward to the March equinox, for some the end of winter, and for many, a chance to celebrate.
Blooming cherry trees usher in spring to Washington, D.C. Take a look at the long history of our Capitol's trees.
Across the Northern Hemisphere spring has arrived, and with it many ways to celebrate.
The warmest springs on record have caused flowers in two historic sites to bloom at their earliest dates in decades.
Even as local efforts to improve air quality have been making headway over western North America, increasing flows of unhealthy and agriculturally harmful emissions of ozone have been blowing in from Asia. While scientists have recognized this phenomenon for some time, they are just now beginning t...
What's behind the seemingly mysterious ability of brooms to stand upright?
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