What kind of food makes a bird live longest?

I am thinking about getting a bird, and what kind of food helps them live longest and healthiest? I am not sure whether I am going to get a large bird such as a parrot or a smaller one like the parakeet.
Will mixing fruit and veggies also help?

Is it true that calico cats are only females?

I've heard from multiple people, including veterinarians, that if a cat has the calico pattern (grey/black, brown and white) anywhere on it's body then it's a female. Is that a true statement? Or is it just an assumption made by someone?

If it IS true, why is it that calico's are only females?

Thanks!

What size Exo terra terrarium should i get for a full grown king snake?

I really want to get an exo terra terrarium, i like the design, but i dont know what size i should get for a king snake.

How many crickets should i be feeding my savannah monitor?

I have recently purchased a savannah monitor, they gave much information on what to feed him and how to feed him but not the frequency or the quantity. He is a juvenile lizard around eleven inches long just for the added information since I know it varies based on age and size . Any help would be appreciated !

How to introduce a new rat to another rat?

Basically about 3 weeks ago I got a young rat (few months old). Well I felt bad cuz I am only able to hold her for a few hours a day. So I'm planning on getting another rat tomorrow.
What's the best way to introduce them?
Any suggestions in general on the whole situation?

What is the best type of chameleon to have in a house that is not calm?

I really want a chameleon but my house is not calm. I asked if everyone if they could be a little more calmer around the house but they said no. What would be the best type of chameleon to get and how do I make it feel comfortable?