Did Cousteau and his crew ever get fined and/or penalized for using explosives, and for killing and abusing animals, and for harming the ecosystem? They sure should have been.
No one is answering this question:
Did Cousteau ever study and/or work with land animals?
I doubt he got fined or anything - at that time people did not have the same knowledge as they do now so it sounds like it was "normal" to do studies like this. I was reading that he used to break a piece of coral off a reef and show it to the camera and pack it away to study it. Since then most even the average person knows not to even touch a reef as it is a living thing and even touching it can cause great harm. Maybe much of his harmful studies ended up being a result of us knowing what we know now.
The older Cousteau would not do and would actually campaign against doing many of the things he did when he was younger.
When he was younger than was never even a major such as environmental science - now it is a major offered at most colleges and a big industry.
As far as the study of land animals - I never heard of it - but it should be an easy look up on the internet if you are really interested.