Some of Theater Oobleck's best work has come about when the creators have gone with their gut--and that's the case with Dave Buchen's simple, wistful survey of the world's history since mankind started mucking about. A kranky displaying Buchen's drawings of insects, elephants, constellations, and catastrophes scrolls throughout, accompanied here by a set of songs in English based on original Spanish-language songs by Sebastian Paz. The intro is from Pliny the Elder, but there's nothing dusty or pedantic--just a meditative handmade valentine to the glories of nature, an elegy for what's been destroyed by human civilization, and the expression of a vague hope that maybe, somehow, it's not too late to turn the ship around. Also on the program are Terri Kapsalis's The Hysterical Alphabet (A-L) (Saturday and Sunday only) and Buchen's Rhymes for a Long War. 4/28-4/30: Fri-Sun 8 PM, Link's Hall, 3435 N. Sheffield, 773-281-0824, $12 suggested donation. Then Natural History alone Tue 5/2, 7:30 PM, Hideout, 1354 W. Wabansia, 773-227-4433, $10 suggested donation. Both shows are "more if you've got it, free if you're broke."