We are on a picnic!

Our hearts are same
Beats are different,
Body structure is same
The color is different;
Brain working is similar
Functioning is different,
Blood color is same
Its thirst is different.

Everything, Every part
Created are same,
Differs are our motives
Our wants, Our attitude;
We are nothing but kids
Having picnic on earth,
Once the vacation is over
We'll be back to home.