There are 17 kinds of penguins in the world. All of them live
in the southern (36) . Only a few (37)
live on the continent of Antarctica at the bottom of the world. The
emperor penguins are the largest. They are about 100 (38)
tall and weigh about 30 kilograms. Their special (39)
of mating makes them different from all other penguins.
For thousands of years the emperor penguins have lived on the
(40) continent of Antarctica. These black and white birds live
in large groups or colonies. There are about 40 emperor penguin colonies on
Antarctica. In total there are about 400,000 birds. These birds
spend the summer swimming in the ocean in (41) of food such
as fish and (42) . Penguins are not able to fly, but they
are (43) swimmers. (44) . But when summer
ends, so does this easy time spent by the water. (45)
. (46) . They must find an area
with some shelter from the freezing winds.