For centuries, humans have searched for the proverbial fountain of youth, chasing immortality and eternal vivacity. In this sense, an unlikely creature has bested the human race: the immortal jellyfish. Help U Cover made this infographic illustrating the lifespans of different creatures in the animal kingdom, from the mayfly to the jellyfish and everything in between. The infographic includes details related to specific species within the categories of reptiles and amphibians, aquatic beings, birds, mammals and insects. Each of these categories is color-coded, making it easy to see the difference in the average lifespans between groups. The infographic also contains a few interesting facts about the longest-living individuals in certain species.