I found this to be very informative (if you have an hour to kill). There are several different speakers. [video=youtube;icUWWo_EAj4]http://www.youtube.com/watch?v=icUWWo_EAj4[/video]
I watched through most of the film-----the photographer was very distracting, often not aiming the camera at the person talking or at the equipment they were trying to show us. Possibly, the best thing about the video was the selection of additional links that came on after it ended.:mrgreen:
The wonders of nature! Amazing how some species adapt so well to their function! SHB is a great example of that. Thank you for the video Ablanton.