That's true of Caterpillar, too, even though it seems like the yellow-and-back color scheme has been around forever. Not too many people alive today remember that back in 1925, when this heavy ...

He brushes away the excess dirt. And there, in his palm, is what looks like a bright yellow caterpillar. Dead. Attached to its head, unicorn style, is the slender brown fungus. From his pocket ...