It would take forever listing all the animals that have adaptations that helps them survive in their environment.
Natural selection is the process by which individuals with characteristics that are advantageous for reproduction in a specific environment leave more offspring in the next generation, thereby increasing the proportion of their genes in the population gene pool over time.
Glycogen is the process of storing excess glucose. During fight or flight, catabolism is the fore action of the body. Production of glucose for release of energy not conservation of energy.