Slime Mold Favors Own Kin: Slime is Thicker than Water!

The slime mold Dictyostelium is a single-celled amoeba. The weird thing about it is that upon a chemical signal, millions of slime molds can "clump" into a mound that then moves around as if was a single organism.

But it turns out the story is even weirder: Rice University biologists discovered that these amoebas can discriminate their own kins – and will altruistically sacrifice themselves for their relatives!

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