How long had it been since a manatee was spotted off the Massachusetts coast?

The correct answer indicates that it had been a decade since a manatee was spotted off the Massachusetts coast. The rarity of such sightings is significant because manatees are typically found in warmer waters, and their appearance in colder regions like Massachusetts is unusual. This particular timeframe reflects a notable change in their patterns, possibly influenced by climate change, environmental conditions, or shifts in their food supply. The decade-long absence emphasizes the importance of monitoring wildlife populations and how changes in ecosystems can affect animal behavior. This context plays into conservation efforts and highlights the need for awareness regarding marine life. Data supporting this kind of pattern can provide valuable insights into broader ecological trends.