Because the range of animals in Figure 1 spans well over five orders of magnitude (a factor of more than 100,000), from a little mouse weighing only 20 grams (0.02 kg) to a huge elephant weighing almost 10,000 kilograms, we are forced to plot the data logarithmically, meaning that the scales on both axes increase by successive factors of ten.
Causality not right we use log becausr of nature of relatonship
