It seems we're always learning something new about slime molds, the bizarre roaming cell-colonies where countless biological principles can be found writ in miniature. Here's a point-by-point breakdown of why the slime mold deserves your respect.
Slime molds fascinate biologists because they're essentially swarms of single-celled creatures that can coalesce to act as one larger organism. Your basic slime mold is a one-celled unit, not very different from an amoeba. However, when activated by a chemical signal, the individual cells can come together to form a supercell—a largish, sometimes meters-long mass that creeps across the ground in search of nutrients. In their multicellular states, slime molds can look like mushrooms, puddles, and any number of other things. When mobile, they've been observed to move at more than a millimeter per second—not bad for a team of cells just looking to satisfy their hunger.