Sarlac: Rubbish
Really, George, what the hell is this? What were you thinking? When I first saw Return Of The Jedi, this seemed a really cool monster – was too young to know better – but now it just seems stupid.
Why is it named for the old English for ‘Lake of Blood’?
What does the Sarlac live on in the wild? It’s a huge animal, I’m frankly surprised there is enough for it to eat in the desert, it must require a fair calorific intake to keep it going…
…And since it’s basically a big funnel in the middle of the desert, surely it would fill up with sand?
How do Sarlac mate? It doesn’t look as if they can move – if they can how does Jabba know where it is? – so how does it find a mate? What are the mechanics of a Sarlac coupling? The mind boggles.
This is another example of stupid ideas from the Star Wars world.
What? Why Bother? 
Lake Of Blood ?? – Hardly a lake. And yes it does seem pretty dumb.
I’m sure someone was eating a pizza when they thought of Jabba’s name. ” Hey, lets hit the Hut ” !!! and poor Jabba gets the shit kicked out of him…..
The sarlac/lake of blood might just be a coincidence
I might yet be having a few well aimed kicks myself, soon… 😉
I’ve never really pondered this on watching the films…now I will be forever pondering just how does a Sarlac survive, perhaps it also eats sand?
Mmm.. but if it eats sand, why the teeth, tentacles, etc? I think the simple answer would have to be that Mr. Lucas just didn’t think it through.