Can animals take Aloe Vera?
Yes and in much the same way as humans do. Many have found it has benefited animals suffering from digestion problems and arthritis or to help with wound healing.
The size of the animal will dictate how much Aloe they would need if it is being taken for a particular ailment (a horse will need more than a dog).
Note however that it is possible, as with humans, that a pet could be allergic to Aloe Vera or experience side effects.
See Books about Aloe Vera for books on using Aloe with animals.