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

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

Overall

, it can be seen that

while

the

number

of bears in the USA increased over

this

time, the

number

of dolphins declined dramatically.

Also

, the whale

population

remained the same during

this

period. On the one hand, in 2011 the

number

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

However

, in the next three years, their

population

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

this

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

number

of wild animals among other animals.

On the other hand

,

while

the dolphin

population

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

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

this

period the

number

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

this

number

leveled off to where its

population

started and reached about 70 thousand in total.