News tagged with large groups

Herding sheep really are selfish

Many animals spend time together in large groups not because they enjoy each other's company, but rather because it lowers their own chances of being eaten should an uninvited guest arrive on the scene—or ...

Jul 23, 2012 not rated yet 0

Hubble sees a vapor of stars

(Phys.org) -- Relatively few galaxies possess the sweeping, luminous spiral arms or brightly glowing center of our home galaxy the Milky Way. In fact, most of the Universe's galaxies look like small, amorphous ...

Jul 02, 2012 5 / 5 (2) 0 | with audio podcast