I believe the answer is: <span> have external ears
The seals on the other hand, only have small gap in the side of their heat but </span>lack an external ear<span> flap.
The function of the external ears are very similar to humans' , But sea lion's ears have different structures that help them to sustain pressure to protect them when they're diving.</span>
Prince Henry the Navigator was known as one of the most enthusiastic supports of Portuguese exploration during the 15th century.will be a.<span>Prince Henry </span>
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