Robert wanted to argue with Professor Alma. He was tired of her attitude of superiority and complete rude demeanor. He sighed trying to erase all his anger as his eyes ran over to Kai. As soon as she came into view it's as if it all disappeared. He gave her a smile and he sighed.
"She has enlarged pupils. Of course because she lives at such dark and deep waters she needs them to see in the darkness that surrounds her. Her upper torso is much like a female humans. Her gills here.." he said his fingers running lightly along her sides, "Are for breathing within water, when she is out of water they shut allowing her to breathe with mammal lungs." As he named things his hands touched her ever so gently and he lost all thought of Alma, completely engrossed with looking at her, his hands on her.
"Her tail begins at the waist. It is made of cross linked hardy scales. She has paired pelvic fins, like all fins they are there to function as an aid in swimming. These are for moving up and down, turning sharply or stopping sharply. The dorsal fin," he said moving his hand to touch that one, "serves to protect from rolling and assists in turning. Her adipose fin is on the lower extremity of the tail is simply for detection of changes in pressure and temperature and her caudal fin..." he said laughing softly as his hand slid all the way down her tail to hold the soft fin flapping out of the water so Alma could see, "serves for propulsion."
He let her tail slide back into the water as his eyes ripped from Kai's face to Professor Alma. "Happy?" he asked with a raised brow.