Apex predators are the top predator in a particular ecosystem. When humanity removes that predator devastating changes can take place in that ecosystem. Humans saw this clearly when wolves where reintroduced to Yellowstone National Park. The elk population was kept in check, which changed the tree and shrub mix, which changed the environment for fish, birds and insects.There are so many unintended consequences to our a actions we can’t even imagine. We must tread very carefully on our natural world.