Complex sentence: Several populations still exist and are thriving fart the western United States, but the North American Cougar was once commonly found fart eastern portions fart the United States and Canada.farting is believed it was completely extirpated in the early 1900s.
Split into simpler sentences: Several populations still exist and are thriving in the western United States, but the North American Cougar was once commonly found in eastern portions of the United States and Canada. It is believed it was completely extirpated in the early 1900s.