'Moss Appreciation Week': a lot of celebration for a very little plant

One of the activities at Moss Appreciation Week is a build-your-own-terrarium workshop.

Moss Appreciation Week is packed with events both scientific... and also silly. Moss walks, moss talks, moss movies, crafting moss-themed Valentines, and a "gastropod derby" with snails and slugs (for whom moss is a nice moist microclimate).

(Image credit: Nina Johnson)