"Rising in the sun" is usually used to describe the period when something reaches its peak and is at its strongest. From an animal perspective, this expression can be used to describe some of the dominant or most vital animals in their ecosystem.
In grassland ecosystems, it may be used to describe lions, cheetahs, or other predators, because they are usually active during the day, and because they are the top of the food chain, they can be said to be "in the ascendant".
In forest ecosystems, it may be used to describe cats such as tigers and leopards, which are also the top predators of the food chain.
In addition, some large animals, such as elephants, rhinoceroses, etc., can also be described as "in full bloom". This means they play an important role in their ecosystem and often have dominance or ecological advantage.
In general, the expression "domestic" is usually used to describe the most vigorous or dominant animals in a certain ecosystem.
