In addition to the nearby residents, the dump has become a "paradise for animals", and the most abundant animal living here is our protagonist today - a larger than human bird bald stork
It is proposed that birds originated from dinosaurs, and that "ancestor birds" are a transitional species between birds and dinosaurs.
The primitive food chain is mutually exclusive, so that different species can continue to survive in nature, piranhas have a nemesis even if they are fierce.