Why do dogs & cats need to get so many shots ?

I have a 5 year old dog and I was wondering what shots do I get a dog at that age?

How come cats are not taken out for walk like dogs? How come cats are not taken out for walk like dogs?

does a 1 and a lahf year old dog need a parvo shot? when i went to get the shots for my god they said the distemper and rabie...

how many times with the male dog does it take to get my female pregnant?

I just got a dog. she needs attention but she is 2. my cat is jelous and always hisses at her. my dog has only barked at her...

how od does a dog have to be to receive its first rabie shot?

I have in inside outside cat and two of my others cats dont get along with him..but my other two do.. why would they get alo...

do the dogs need to get stuck, in order to become pregnant?

How long until you know if your dog is getting better from parvo? How long does it take parvo to kill puppies?

Is this normal? she is a puppy, I cant just move the box because of the kitten. But we cant get the pup to stop getting it o...