Complex sentence: The head of a spotted seal is round, with a narrow snout resembling that of a dog, a relatively small body and short flippers that extend behind the body that provide thrust, while the small flippers in front act as rudders.
Split into simpler sentences: The head of a spotted seal is round, with a narrow snout resembling that of a dog. The spotted seal has a relatively small body and short flippers that extend behind the body that provide thrust, while the small flippers in front act as rudders.