The line graph illustrates a comparison of the population of bears, dolphins, and whales in their natural habitat.
Overall, bear populations witnessed an upward trend, whereas the number of dolphins declined rapidly. In contrast, whales remained relatively stable. Additionally, it is apparent that the number of bears peaked between 2020 and 2022.
In 2017, dolphin populations were highest in 2019 at 150 million in the wild. This figure decreased significantly to only around 80 million one year later. From 2018 to 2019, there was another fall to more than 30 million in dolphin populations. In the following two years, a dramatic decrease in dolphin numbers was recorded, reaching a mere 1 million in 2022.
In contrast, bear populations rose substantially. The number of bears in the natural habitat stood at only around 10 million which is the lowest figure in the chart. However, there was a considerable growth in bear populations to 120 million, and reach the high of 180 million in 2022. Finally, whale populations experienced a dramatic fluctuation from 80 million to 100 million throughout the period.