Incredibly gutsy actresses!
The doomed women strike me as being incredibly gutsy. In one scene, they have to feign sleep while the room is filled with tarantulas. All the women are wearing is translucent lingerie, so one can see some of the tarantulas are actually walking under the sleepwear. Likewise, when the women are being murdered by being stuck in a room filled with snakes, the women are barefoot and even holding the snakes about their heads and shoulders!
Okay, the "deadlienss" of tarantulas is greatly exaggerated by Hollywood and the snakes would have been either milked of vemnom or possibly defanged, but we still have to commend these ladies for their dedication to working on this flaky flick!
Compare these scenes to DR NO or RAIDERS OF THE LOST ARK, in which the verile Sean Connery and Harrison Ford are clearly protected by a glass barrier from the same critters!