Bill Nye introduces reptiles and explains how they are able to live in different environments around the world by regulating their own body temperature. As cold-blooded organisms, they don't keep the same body temperature throughout the day.
Dory drops the scubadiving goggles that she and Marlin found, and they swim to the abyss to find them. In the darkness, they find a light emitted from an anglerfish, which attempts to prey on them. Marlin distracts the anglerfish and directs its light to the goggles so that Dory can read the address on them.
The Kratts brothers find a golden pheasant in China and admire its beauty. The bird's most notable feature is its dazzling assortment of colors. The brothers watch it in its natural habitat and observe that it stays out of the sun to protect its colors, which help it attract mates.
The Kratts brothers rush to observe the way in which pandas eat. They highlight the most notable physical trait of a panda: its thumb. They find that the thumb helps pandas eat bamboo, which is almost exclusively their diet.
Sophie discusses how plants and animals need to compete in order to survive and the role that adaptations play in their ability to survive. She explains how several animals and bugs have adapted to become better suited to surviving in city environments.