More here:In Lewis Carroll’s book Through the Looking Glass, the Red Queen explains how a race works to Alice: “Now, here, you see, it takes all the running you can do, to keep in the same place.”
Scientists have used this as a metaphor for evolution: a fox must be able to run fast enough to catch a rabbit; the rabbit must be able to run fast enough to escape.
However the so-called Red Queen Hypothesis did not seem to work when two species started working together, as the one that evolved its ‘mutualist’ traits faster would end up providing more help than it received in return, thus, getting a raw deal.
http://www.independent.co.uk/news/scien ... 08876.html
For those scientifically-minded, you can chew over these findings: http://www.nature.com/ncomms/2016/16082 ... 12679.html
But, here's a disclaimer - don't go in there unless you're a Science Nerd.
Of course, if it's all too much, you could always just go to the pub! (Mine's a symbiotic glass of wine.)