>>39085877Poison type expert here. It depends on the species, but mostly yes. Alolan Muk is even described as able to control if it even leaves a slime trail.
>>39086393Yes, Slowpoke tails are very tasty apparently.
>>39088029It varies. Some are creatures that manipulate soul energy, and some are literally soul creatures, formed from the primordial soup of ghosts and memories that exists in another dimension.
I imagine they have full control over the amount of energy they drain, but living things can fight back.
>>39088144No they don't. That was officially retconned with the 3rd movie, Entei and the Unown.
The original script had the movie be about the skeleton of a T-Rex coming back to life and attacking everyone. The movie would tackle questions like "What happened to the real animals?" and "Why are there still plants?" but they decided they didn't want that, and made it what it is now known as. Real animals were never mentioned again since then.