reproduced with permission from The Moo News Archive at http://www.hubertkarreman.com/
The immune system (September 2013)
The immune system is such an incredibly important system in our daily lives and we rarely think of it, unless an illness arises. The immune system is a con-stantly changing, dynamic aspect of each of us – and every animal life form, to greater and lesser extents. Frogs have immune systems, crayfish have immune systems, salamanders have immune systems, snakes have immune systems – as do lobsters, swordfish, haddock, penguins, otters, armadillos, loons, moose, cows, pigs, sheep, dogs, cats, and mice. The immune system separates every living being from every other living being, essentially saying, “this is me, not you”. The immune system protects us every breathing moment that we are alive, whether we think of it or not.