Glad to hear you like the animals so far, and thanks for the feedback.
Yes, this is a requirement now, the UE4 Marketplace want proper physics assets for characters. So all animals have custom ones. Though maybe a developer would want to tweak or change them for whatever reason.
regarding the idle animations: animals have a few of them (idle breathe, idle chew, idle look around , idle look for food and eat, idle graze). So basically you can create your own sequence for example:. walk, look around and eat, chew chew chew. idle breathe graze, chew chew idle breathe walk etc… We might want to add the animation list but it can be a pain since we’re limited with the amount of words in the description…