Behold some of the bacteria that grew when an 8-year-old boy who had been playing outside pressed his hand onto a large Petri dish. The photo received lots of buzz after his mom posted it on ...

coli. “In order to grow bacteria on a petri dish of that size, it needs to be able to swim, which is something E. coli can do but many other model organisms cannot,” said Dr. Michael Baym ...

Participants were shown a 9cm diameter petri dish of tomato ... shown a target serving size of cereal and asked to reproduce this by serving themselves on small and large plates.

Each bacterium is only a few microns in size, and they divide every 20 minutes ... Ben-Jacob grew the bacteria in petri dishes and exposed them to different conditions—like temperature swings, ...

"Cultured meat" -- burgers or sausages grown in laboratory Petri dishes rather than made from slaughtered livestock -- could be the answer that feeds the world, saves the environment and spares ...