Bag of sugar sized muscle pumps blood. Most reptiles:
3-chambered heart but gator 4-chambers like mammals
& birds which gators used to be millions of years ago
when they were dinosaurs...
We walked along the edges of the pickup bed to avoid the alligators in the center, we were tipping and taunting and finally falling into the bed and scrambling, forgetting there were alligators when we found the sun-rotted tarps . . .