I haven't actually seen this but I do believe they will. I had a 120-class buck that I had dead-to-rights (so I thought) in a 50X50 yard thicket, and he got out of there without me seeing him. Maybe he flew out, maybe he had a foxhole in there, but the most reasonable explanation I've got is that he crawled up a little wash maybe 3 feet deep and blasted out the far side while I blinked.