There is a difference between what happens in the wild and what practices we are posting on youtube. Documented predation on vertebrates by mantids in the wild is very rare and worth a pic. As with lions or hyenas eating live elefants this may be disgusting and unfair, but nature is unfair and gruesome. But noone should feed vertebrates to mantids at home, because we shouldn't be unfair and gruesome!! Torturing a vertebrate by feeding it alive to a predator like a mantis that doesn't kill its prey before devouring it isn't something that we should promote. Every vertebrate kills its prey before eating it and that's why feeder verts are accepted. Whether fed alive or dead, the prey will not suffer a lot. This isn't the case with mantids and promoting this on the internet sheds a wrong light on us and our hobby. We are not perverse satanic psychos which get a (use of vulgarity deleted) while torturing animals but serious enthusiasts who can contribute a lot to the knowledge of the respective groups. If someone feels he belongs to the first category he has the wrong hobby - not that I am referring to anyone in particular.