We could learn a lesson from the Ahinga & the Armored Catfish.
The Anhinga is hungry. The Armored Catfish doesn't want to be eaten. As our class drifted lazily past the two of them, the Anhinga kept flipping the Catfish around, trying to swallow it whole. The Armored Catfish kept flexing his spines, making it most difficult to be swallowed. Neither one looked like they were going to throw in the towel any time soon.
I never saw who won, the Anhinga or the Catfish, but in a way it is a good lesson for all of us. No matter if you're eating or being eaten, NEVER GIVE UP!!