I’ve been watching a heap of dissection documentaries recently for free on YouTube via a user named EvolutionDocumentary. They’re from the series with Richard Dawkins named Inside Nature’s Giants. It’s a paid account so all the documentaries are full length (no irritating 10 minute splits) and they have no ads either. WIN!
It’s incredibly interesting stuff so I definitely recommend having a look, and to make things easier I’ll relink them all here in sequential order.