The importance of this technique in showing a lion or a tiger or bear walking on it's path and showing curiosity on a stuff unidentified to it would soon perhaps fade outPerfect - you are spot on with that observation Nilanjan. Infact I was thinking other day whether a closed eyes connected to mind is as powerful as the open eyes. I think next step for me in this direction is to master the technique to the level of "open eyes" and portray the perspectives/behaviors (not just curiosity towards the new object) which otherwise are not available using regular techniques. It is tough and frustrating at times but I *think* can be mastered over time. It takes about one and half hours to two hours for me to set up a trap now. Every detail need to meticulously worked out - for example some set up error caused 12GB worth of empty sky images during my last trip and it took some time for me to understand mysterious triggering of camera without anything showing up in the frame. During last several months I have been experimenting with these techniques with different kind of trap/unmanned devices, I think it can be mastered over time - but not without first baby steps - these images indeed are those first baby steps. That said the above image is not representative of possibilities that these techniques offer. The perspectives like these below are possible using this technique which are not "subject looking at the new device" out there
http://naturelyrics.com/galleries/fauna ... ney_1.htmlhttp://naturelyrics.com/galleries/fauna ... ood_1.htmlhttp://naturelyrics.com/galleries/fauna ... rocks.htmlSome of these perspectives are not possible otherwise. Then we have a question on natural history aspect of these images. My take on them being, purpose of nature photography goes beyond portraying natural history alone. Portraying the forms/shapes/colors of nature in a unique way that touches human senses is an integral part of nature photography. Not that there is no place for portraying natural history using such techniques, it indeed is there - if we can spend multiple weeks/months in the field.
At the end the question of open eyes and closed ones still remain open. May be time will answer though I am fairly confident about possibilities.
Anup Shah seem to have mastered this quite well. Some of his collections here in the below link. While there are images of "curious look" there
are other stunning perspectives there -
http://www.shahimages.com/index/gallery ... mages.htmlComing to animals chewing camera, I recently worked with someone and got a hard hollow stone designed which houses my camera

so the safety of camera *may* be a non-issue (not sure of the lens though).