The table below shows the population changes of several animal types from 1977 to 1990. summarize the information by selecting and reporting the main features and make comparisons where relevant.

The given line graph illustrates the population of various animal types within a

period

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of 6 years-commencing from 1977.

Overall

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the

number

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of dolphins declined over the

period

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.

Whereas

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there was an increase in the

number

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of bears. At the beginning of the

period

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, dolphins which was been 150

thousand

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,

was

Correct subject-verb agreement

were

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the most populous animal.

This

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was higher than others.

However

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, it declined gradually or the 6 years timescale to finish at just zero. In sharp contrast to

this

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,

firstly

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the

number

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of bears was almost 5

thousand

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. The figures rose dramatically and exceeded that of whales in 2013 with a

number

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of 100

thousand

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. After that, there was a fast rise to get to around 200

thousand

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. Whales began at almost 80

thousand

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and after 3 years surprisingly reached 100

thousand

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in 2013. For the next 3 years population of whales declined to roughly 60

thousand

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in the rate of bears climbed significantly during the

period

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.