"Struggling for Existence"


When I'm hearing "Struggling for Existence" first time I didn't understand its having a great meaning.I just learned from my Zoology teacher that in this living world everyone struggling for their existence.But that time I just ask myself whether we having that much struggle to live in this world but now I got real meaning of that, life teaches me what is struggling for existence.Each and every things in the world doing same...But one side its hurting others who cares they want to live ..
Now I'm also struggling everywhere but is it necessary? I don't know ....but I'm also struggling everywhere....