The graph shows population variation in three wildlife species from 2011 to 2016 in North America and its coastal areas. Summarize the information by selecting and reporting main features and make comparisons where relevant.

The line chart provides details on population growth for three wildlife animals;namely bears,

dolphins

, and whales,over five years,between 2011 and 2016 in North America and its coastal area.

Overall

, one noticeable feature of the data is that the number of bears shows an upward trend throughout the period

while

the rest display different patterns,with

dolphins

illustrating a downward shift and whales representing a moderate fluctuation over 5 years. Regarding the bear population, it is evident that the amount started at around 5,000 at the beginning and significantly increased until the end,accounting for almost 200 thousand.

On the contrary

, the conversion of

dolphins

considerably decreased from 2011 to 2016, by approximately dropping by 150,000.

In addition

,there was a modest fluctuation in changes in whales during the years. Despite

this

kind of mammal displaying not over 50,000 throughout the timeframe,it reached a trough in 2012,standing at over 50,000, and peaked at 100,00 in the following year. For the next decade, if there is no preservation for wildlife animals, the

dolphins

will decline until extinction.