Rabbits are nature's fast food. Everything with a taste for meat- and big enough to take them on- treats them as prey. 95% of all kits never make adulthood. I learned that from Springwatch. Also on Springwatch I saw graphic footage of kits being killed by a magpie. A magpie, I ask you!
Call it the Great Chain of Being. Call it an Ecosystem.
All that energy- bubbling up from wherever it comes from - passing from life-form to life-form by way of predation. Sounds meaningful when you put it like that.