They are part of our environment, our DNA, and our psyche. The ability to have abstract thought and create art is considered human. Humans write wonderful sonnets to lost love. Humans dream up cities, and wars, and fight over religions based on Gods they are afraid of. They condemn their offspring to wars over differences of opinion.
Animals simply live, and exist.
Their experience is more direct and less cluttered. They expect no veneration or memorial. They leave no great mark on the world. Sure, there is dominance and power in the animal world. That is part of nature.