It varies on the sizes and species. A yellow anaconda could eat
small sized caiman, but a large caiman can bite the snake in half.
A large dominant female green anaconda can kill almost any sized
caiman.
Anaconda is a large snake that belongs to the family of boa
constrictors. Anaconda ,is also known as water boas are one of the
largest and most powerful amongst other reptile in the world.
THE ANSWER IS ANACOnda
What if a anaconda died?
The corpse would decay slowly due to bacteria and other
micro-organisms in the ground which digest animal remains. Less
predators in the ecological niche would lead to the growth in
population of those species that were usually preyed upon by the
anaconda. Increase in the prey population would eventually lead to
an increase in the anaconda population as the anacondas in the
local area would have more prey to eat.