Science, June 5, 2009

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Herbert Newman's 1960s love song about the birds, bees, flowers, and trees inspired this cover, which celebrates the sixth essay, "On the Origin of Sexual Reproduction," in Science's monthly series honoring Darwin's 200th birthday.
On the Origin of Sexual Reproduction
Why sex? In the sixth essay in Science's series in honor of the Year of Darwin, Carl Zimmer explores why so many species take such a labyrinthine path to reproduction, when straightforward routes are available.
Hydrogen Cars: Fad or the Future?
The Obama Administration wants to end the hydrogen fuel cell vehicles program, which proponents see as the ultimate clean-car technology.
Persevering Researchers Make a Splash With Farm-Bred Tuna
A 30-year effort has paid off in raising bluefin tuna in captivity, but the benefit for wild stocks of the embattled predator may be years more away.
The Tales Told by Lonely Galaxies
To what extent is a galaxy shaped by its surroundings? To find out, astronomers are seeking the rare ones that appear to be isolated.
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