Board Thread:Questions and Answers/@comment-80.220.186.89-20151002171410/@comment-7066804-20160115205231

I haven't experienced this much lately on my own server, w e've had dinosaurs that are 600+ days old and are still fine. There's no reason dinosaurs should just despawn, there's nothing in F/A code that would do that.

It is possible that the eating AI bugs out and the dinosaurs are unable to find food and they starve. If you're running a cauldron enabled server, using something like Logblock or Prism could help indentify the cause; but if they're just disappearing without a log then your guess is as good as mine.