like my life depends on it..

Was watching Nat Geo - Frozen planet, when I was down with cold. Bison herb being chased by wolves. Just 2 wolves. The bison are really big, but they keep running. Wolves try to catch the last one in the herd but that one is too big. so they let it go and chose an younger one. The herd runs on. The young bison is being torn apart by the wolves as it runs. The bison is also  feisty,  It turns around and gores one the wolves, the male runs away. The female keeps at it,(probably has pups to feed). tearing at the bison. Bison throws the wolf up in the air like a rag doll.  Now both are bloody,  both are tired, both are going to die. Both are fighting for life. If she doesnot eat, she will die anyway, so she doesnot care if she is gored half to death. For bison anyway there is no option than to fight. How desperate life is! every moment of their life, it is life or death.
I m sitting here taking off from my work, sniffing.. if I was that wolf, Id starve to death, If I was that bison, I would be torn and eaten.Sick and unwell like this, one day sick means death in the wild. but us? .. its so easy for us...Its not fair. I mean I felt for a second that we are not alive at all! how alive those animals must feel, danger threatening right around the corner every second of  life. I wanted that!! That kind of motivation to work at just being alive!
I recollect the previous day training, I m always the last in running, everyone in my class is fitter than me. so? It does not matter at all.. Its after all a class! but if there were wolves behind us? Would I say these Brits are fitter-more meat,better bones  and just stay at the back? How I would have trained then? would I ever be at the back of the class? Would I ever  lack motivation for exercising then?
To do something in my life, like my life depends on it!? how would it feel? It would feel so invigorating!!!!! no?!