The Great Escape (from mouth to anus)

In the classic true story WWII movie, "The Great Escape", Steve McQueen's character attempts multiple daring escapes from a German POW camp before he succeeds along with a bunch of his ombres.

Equally impressive is an aquatic beetle named Regimbartia attenuata (Ra), whom once swallowed whole by a frog, escapes through the frog's back end (aka anus) in 4 hours tops.  The record holder Ra clocked in his successful exit at a mere 6 minutes in a Kobe university ecology lab, Japan.

Writing today in the journal Current Biology, Kobe University ecologist Shinji Sugiura describes how the beetle, locked behind the frog’s jaws, turns around and scrambles through its digestive tract. In carefully designed lab experiments, Sugiura found that 93 percent of the beetles he fed to the frog Pelophylax nigromaculatus escaped the predator’s “vent”—aka anus—within four hours, “frequently entangled in fecal pellets,” he writes. The quickest run from mouth to anus was just six minutes. The beetles then went about their day as if they hadn’t just spelunked through a digestive system, and even swam effectively.