Final answer:
The Red Queen hypothesis describes co-evolution between competing species and emphasizes the need for constant evolution.
Step-by-step explanation:
The Red Queen hypothesis, named after the Red Queen's race in Lewis Carroll's book, Through the Looking-Glass, describes co-evolution between competing species. The catchphrase, 'It takes all the running you can do to stay in the same place,' emphasizes the need for constant evolution. As species compete with each other, they must constantly adapt and evolve in order to stay in the same ecological niche and ensure their survival. This ongoing process of co-evolution between competing species is driven by the need to outcompete each other and maintain their share of resources.