Complex sentence: The many-storied Leopard seal is a ferocious predator that preys on warm-blooded animals, such as other seals and penguins, whereas the more sedate crabeater uses its unusual multilobed teeth to sieve krill from the water.
Split into simpler sentences: The many-storied Leopard seal is a ferocious predator that preys on warm-blooded animals, such as other seals and penguins. Whereas the more sedate crabeater uses its unusual multilobed teeth to sieve krill from the water.