The animal details tab contains all the basic information about the animal, including it's breed, species, name, age, location within the shelter, identifying code etc.
When you create a new animal, a special option appears for ``Non-Shelter Animal'' (as shown in the screenshot). Tick this box if the animal is nothing to do with your shelter, but you want to utilise ASM's facilities in managing vaccinations, etc. This is very useful for shelters that run their own clinics which are open to members of the public (and of course it allows clinics and vets to run their operations with ASM too if they don't handle adoptions, etc).
Below the animal's name, you can also tick a ``not for adoption'' flag, which enables you to hide this animal from the internet publishers.