What decreases the chance that the evidence of life will be left when something dies?

The answer is scavengers. Scavenging is both a meat eating and a herbivorous sustaining conduct in which the forager bolsters on the dead creature and plant material present in its natural surroundings. The eating of flesh from similar species is alluded to as savagery. A few vertebrates are scavengers. Hyenas are regularly thought of as scavengers, but on the other hand are conventional carnivores. A solitary hyena bolsters for the most part on dead creatures. Hyenas may devour a creature that has passed on to wounds, or it might take meat from another flesh eater, for example, a lion.