The Old Man and the Sea
He loved green turtles and hawk-bills with their elegance and speed and their great value and he had a friendly contempt for the huge, stupid loggerheads, yellow in their armour-plating, strange in their love-making, and happily eating the Portuguese men-of-war with their eyes shut. (2.44)
He could not see the green of the shore now but only the tops of the blue hills that showed white as though they were snow-capped and the clouds that looked like high snow mountains above them. The sea was very dark and the light made prisms in the water. The myriad flecks of the plankton were annulled now by the high sun and it was only the great deep prisms in the blue water that the old man saw now with his lines going straight down into the water that was a mile deep. (2.55)
During the night two porpoises came around the boat and he could hear them rolling and blowing. He could tell the difference between the blowing noise the male made and the sighing blow of the female.
"They are good," he said. "They play and make jokes and love one another. They are our brothers like the flying fish." (2.89-2.90)