Answer:
In this section, the author mentions that the nature of marine animals makes life in small marine conditions unfit for them. He mentioned that;
1. The fact that they live in groups called 'pods' in their natural marine environment.
2. The fact that they have more space in their natural environments to move and stretch.
Explanation:
In "Excerpt from Marine Mammals in Captivity", by the Humane Society of the United States, the authors condemned the enclosure of marine animals in small environments for the amusement of people. It was mentioned that the nature and activities of marine animals made such environments unfit for them.
They are separated from their natural environments when they leave the waters and they have smaller space to move and perform certain acrobatics like stretching, jumping, etc.
