I’ve never heard of this Luke Tipple before, but apparently he’s some Marine Biologist/TV Celebrity guy. Attaching things to animals can be somewhat problematic, but this seems to have done no harm.
Tipple’s team attached a 50mW green laser to the dorsal fin of a lemon shark via a temporary clipping mechanism. Photo: What We Do Media
![[photo] shark with green laser beam attached](http://www.wired.com/images_blogs/gadgetlab/2012/05/Wicked-Lasers-Laser-Shark-sm-660x439.jpg)