Turtles all the way down

Each time we go to the zoo I figure we'll study something really exotic: gorillas, elephants, orangutans. We did visit the elephants and gorillas today (one gorilla was the size of Thomas; we voted him the best one) but as always our favorite exhibit was the turtle pond. "So many turtles! And waterfall! Big turtles and baby turtles! Some turtles not big or baby!" said Thomas.