Презентация, доклад по английскому языку на тему Blue whales (9 класс)

of Canada, the
Atlantic ocean and the seas to
the South of Madagascar are
some of the most popular
regions where you can meet
blue whales nowadays.
Other regions are the
Southern ocean and the Davis
Strait.

whales, but also
the largest mammal species
ever living on Earth.
Despite the huge size of the
animal, blue whales can swim
at speeds of 25 to 30 miles per
hour.
These whales have a very
distinctive way of
communicating with each
other. They use low-frequency
sound waves to send a sound
signal.

whales has
decreased so much that today
they are threatened with
extinction.
Mainly whaling was carried out
by fishing vessels of the Soviet
Union in the Southern ocean.

Whales become victims of
the movement of sea
transport, getting under the
ships as they usually live in
surface waters. Their
enormous size implies that
they have no sea predators.
Therefore, humans are the
main reason for the threat
of extinction of these
whales today.

protect these beautiful animals. Was created a Commission of experts to deal with hunting and predation in relation to these whales. Unlike other sea animals, these ones produce only one cub at a time. Female blue whale gives birth only once every two years, so their number does not increase greatly.