The rat snake could fall victim to a kingsnake or hawk, but in simplest terms, the rat snake sits at the top of a food chain--plant to herbivore to carnivore.
(The rat snake; could fall; victim; to a kingsnake or hawk) (the rat snake; sits; at the top of a food chain)
The rat snake the rat snake
could fall sits
victim to a kingsnake or hawk
at the top of a food chain