In honor of the Barbie movie, today's theme is: PIIIINK! All the fabulous fuchsias, the prettiest pinks, found in nature! Pink is sometimes maligned as an "frivolous" color, but as we'll find out, nature takes its pink VERY seriously.  From camouflage, to ambushes, river battles and poison, we're taking a look at the dark side of pink.

Guest: Alex Schmidt