Animals sequester by using another animals for something to their advantage. For example, a crab will place an anemone on it's back to prevent fish from eating it.
well over time the land animals change a little and they need to be underwater to live unlike their land animal ancestors
A carnivore. carnivores eat meatthey are also called as "predators".
carnivore
Worms, fleas, ticks and other parasites