Day 32 -- Do Spiders Get Cancer?

This morning I watched a spider lower itself from my kitchen ceiling.  (A quick Google search informed me this is called a dragline.)  My first thought was, "How does it replenish its thread?"  It moved astonishingly fast toward the dog's water dish, and I asked it, "Where are you going?"  Just then it flung itself into the water dish.  I guess it was thirsty.  Maybe that's how it replenishes its thread.  I continued emptying the dishwasher, checking on it every once in awhile to see if it was drinking or swimming.  After five minutes w/ no movement, I decided this was a suicide spider who had catapulted itself into my dog's dish leaving behind a perfectly good dragline.  The aged and infirm in some cultures willingly stay behind to face death alone rather than slow down the progress of the entire culture.   Was this an elderly spider who chose to euthanize itself?  Or was it creating a rope for other spiders to climb down?  I guess that's what the elderly do in any species....leave a dragline.  I replenished the dog dish w/ fresh water.  Can spiders survive in a sink drain?

My dear brother who reads this blog faithfully is concerned about my achiness.  Well, I can tell him that I have no aches today, and, as I told him on the phone, I think the healthy cells have defeated the sick cells.  I've talked in previous posts about referring to cancer in terms of battles and wars and the enemy, but I think in my case it's necessary for the standing army to push back the rebel uprising.  Do spiders get cancer?