Snakes don't rip apart their food. They eat them whole.....
I expect Frontier to want a all ages rating. So I don't expect live bait that will be ripped apart.
PEGI 3
The content of games with a PEGI 3 rating is considered suitable for all age groups. The game should not contain any sounds or pictures that are likely to frighten young children. A very mild form of violence (in a comical context or a childlike setting) is acceptable. No bad language should be heard.
PEGI 7
Game content with scenes or sounds that can possibly frightening to younger children should fall in this category. Very mild forms of violence (implied, non-detailed, or non-realistic violence) are acceptable for a game with a PEGI 7 rating.
PEGI 12
Video games that show violence of a slightly more graphic nature towards fantasy characters or non-realistic violence towards human-like characters would fall in this age category. Sexual innuendo or sexual posturing can be present, while any bad language in this category must be mild. Gambling as it is normally carried out in real life in casinos or gambling halls can also be present (e.g. card games that in real life would be played for money).
PEGI 16
This rating is applied once the depiction of violence (or sexual activity) reaches a stage that looks the same as would be expected in real life. The use of bad language in games with a PEGI 16 rating can be more extreme, while games of chance, and the use of tobacco, alcohol or illegal drugs can also be present.
PEGI 18
The adult classification is applied when the level of violence reaches a stage where it becomes a depiction of gross violence, apparently motiveless killing, or violence towards defenceless characters. The glamorisation of the use of illegal drugs and explicit sexual activity should also fall into this age category.
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I think you're right. Jurassic world evolution has a pegi rating of 16, because the violence (the goat being eaten for example) reached a stage "that looks the same as would be expected in real life." Planet Coaster has a pegi rating of 3, because even tho' you can give the guest a hard time. It isn't such a big aspect of the game, while the goat being eaten is and the dinosaurs fighting is.
That said, zoo tycoon 2 was also a E for everyone, or pegi 3. Even tho' it showed live bait and the carcass afterwards. The only thing different from Jurassic is that Zoo Tycoon didn't have such a detailed animation for eating the live bait. If they didn't want to give the player the option to use live bait, they would have just let the live bait despawn when attacked.
So I think you're right in saying that the live bait probably isn't going to be ripped apart. But they might include live bait anyway. Just like maxis included woo-hoo in their sims games. (Pegi 12)