To better understand the energy cost of living animals in a time when the earth is warming up. So we get a better understanding of just how far these animals are reacting to the changes .That is pretty neat to see that animals are also noticing the changes of the earth warming up and trying to adapt tremendously in order to survive. On the other hand one thing that will catch ones attention when reading this article on accelerometers .Is the great lengths these professionals go to collect this data. It was just so stunning that in order for biologist to get all this data they have to go to each and every animal in the animal kingdom, and run individual test on them. This seems very time consuming and expensive that there is not an algorithm that can correlate each animal to this problem .So with that said one can only hope for accelerometers algorithms to get even better through time .So leaders can start listening to hard proven data