Lets say I m targetting the keyword bright yellow mammal so in in google keywords tool I would have to search it say like this [bright yellow mammal] or how would it be? seeing this that as if I am targetting bright yellow mammal where a user would type bright yellow mammal in google and yeild results. would it be broad keyword search or specific word search in google keywords tool?
First you should post this question in the adwords section because you will get faster response.Just so you know for the future. So as I understood you want to target bright yellow mammal just use the exact match [bright yellow mammal] and when a google user types in his browser bright yellow mammal he will find your ad. If you use broad matching your ads could be displayed for some irrelevant keywords like bright yelow car because you have bright and yelow in your keywords and you are using broad matching.
if you would like to make a research I suggest you to check it in Google SERP 1st like this: [bright yellow mammal] to check the competition. Then use keywords suggestion tool to check daily searches. Anyway all users would type without [ ] but you should know exact competition you would have with the keyword. I also use one but very good tool that makes my keyword research easier. Its Keyword Difficulty Tool
Just type the word "mammal" and see what comes out. I doubt they will have enough data for "bright yellow mammal" since it's very specific. Based on the results that you get, search for related keyword most close or similar to your search terms and target on it to relate back to your original search terms.
I want to know regarding to SERPS position. Lets say there is this user who comes to google.com and types this exact word bright yellow mammal on it. and I want to target for this word only so what would be the way of keyword that I would type in adwords tool so that it tells me exactly how much this term is searched last month. nothing more than that!