Some animals live for just a few hours as adults, others prefer to kill themselves rather than live for longer than they are needed, and there are a number of animals that live for centuries. There are parasites that drive their hosts to die awful deaths, and parasites that manipulate their hosts to live longer, healthier lives. There is death in life. Among all of this is us: perhaps the first animal in the history of the universe fully conscious that death really is going to happen in the end. The zoologist explores the never-ending cycle of death and the impact it has on the living.