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 graph illustrates the

number

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of 3 different animals in North America and its coastal areas in a 5-year period, from 2011 to 2016.

Overall

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, it can be seen that

while

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the

number

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of bears in the USA increased over

this

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time, the

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of dolphins declined dramatically.

Also

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, the whale

population

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remained the same during

this

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period. On the one hand, in 2011 the

number

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of bears was at the lowest in comparison to two other species with nearly zero.

However

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, in the next three years, their

population

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experienced a gradual rise and reached 140 thousand species approximately. From 2015 to 2016,

this

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trend was seen a 40% growth and it reached its peak which was the highest

number

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of wild animals among other animals.

On the other hand

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,

while

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the dolphin

population

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in 2011 was the highest amount with 150 thousand, it decreased dramatically near to zero in 2014 which was the lowest in comparison to others.

Furthermore

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, after 2014 dolphin numbers dropped gradually until 2016 when it closed to extinction. During

this

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period the

number

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of Whales experienced a fluctuating movement between 50000 to 100000 and in 2016

this

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number

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leveled off to where its

population

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started and reached about 70 thousand in total.