Mossjoint

This creature mimics a leaf to camouflage itself in the thick brush of the forest floor where it awaits prey to stumble close enough. Having no limbs, a Mossjoint relies entirely on its strong pincer like fangs to attach to larger prey, and if left unattended a Mossjoint can consume 10 Liters of blood. Humans use Mossjoints for easy blood transfusions as their bodies will naturally purify any blood that they intake. Mossjoints will fight over a carcass of a bloodless body until one is the victor. Once the alpha Mossjoint is chosen, it will begin the new painstaking process of assimilating with the corpse, stretching its newfound vines all over the host's body. This process can take a week or up to a month to complete. Once the assimilation is complete the Mossjoint enters its new stage in life, the Bogmoss.