The line graph compares the populations of bears, dolphins, and whales between 2017 and 2022.
Overall, bear numbers increased dramatically, and the number of dolphins decreased steadily throughout the period, while whales experienced pronounced fluctuations in their numbers. Notably, bears, which started with the smallest population, overtook both species, becoming the most populous of the three in the end. In contrast, having started as the most populous species, dolphins experienced sizable reductions in population, thereby becoming the least populous by the end.
The figure for dolphins declined steadily throughout the period. Dolphin population stood at 150 individuals in 2017 before decreasing substantially to just over 80 the following year. Although the population continued to shrink rapidly until 2019, when it reached approximately 27, it kept decreasing afterwards, albeit at a less steep rate, leaving a single individual by 2022.
Conversely, the population of bears followed an opposite trajectory. Starting the period with approximately 7 individuals, bears saw a significant increase in numbers, reaching parity with the population of whales at just over 60 in 2018. In the following few years, the bear population first surpassed dolphins and then whales before continuing to rise markedly, reaching a peak of about 182 individuals at the end of the timeframe.
Meanwhile, the whale population fluctuated across the period. Initially, the number of whales was 80, which then dropped slightly in 2018, before reaching a peak of 100 in 2019. It fluctuated moderately over the following years before finishing second with nearly 73 individuals.