Cats are mammals just like we are. Some intelligent experts believe cats are more sensitive than humans and I absolutely agree. Cats bond very deeply. I have observed members of feline families in my care in the past and know they do. These two are BROTHERS. How would you feel if you were separated forever from your brother and never given any information as to why, or how your brother is? Cats are very intelligent beings and they have complex feelings. THEIR wellbeing should be the first consideration.