Below is a graph showing the population trends of Delphinapterus leucas (also as known as beluga whales) from 1994 to 2009 in the Alaskan Area.  Since the reproductive cycle of a beluga is seasonal, in which female whales give birth every 3 years, the graph rises and dips in 3-year or 4-year cycles. However, our existence is … Continue reading Population Trend of Beluga Whales