I would love to know why have you titled the image as ' A Tireless Killer " ? What exactly is a tireless killer ? A little more info would perhaps help to relate and understand better. This image is actually making me imagine the stealthy or shy behavior of the species ( wolf / fox ) here. The word " KILLER " in my opinion is a misnomer in nature, predators do hunt, that is how they survive, but in my books there is a big difference between hunting and killing. Perhaps, your thoughts will help me and the other members of the forum to understand this better.
I like the alert, watchful curiosity in the eye of the subject. Life in nature has stealth linked to it and this image is doing quite a bit of justice to it.

This is a Dhole and they are best known to hunt/kill even larger prey by steadily chasing and tiring them down to finally kill. Well hunt is certainly a better word to use in nature . . i guess "The tireless hunter" would have been a better tittle.

Yes Subrata, A tireless hunter is definitely a better tittle . The reason I tried to raise a question on this is that many animals including the wolf, the leopard or even the bear which try to co-exist very closely to the human civilization are considered to be a big threat, more so as a killer. Death or kill is the end result of hunting but I felt that killer is a term which relates more with the human who also thinks of ending a life for personal benefits. Thanks a lot for sharing your thoughts.....