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The biggest animal in the world lives in the sea. The whale is
often mistaken for a ___1___ because it lives in the sea and
___2___ like a fish. actually, it is a mammal. Like man, it is
warm-blooded and does not ___3___ through gills. The whale need
airs so it swims to the ___4___ for air from time to time to
breathe. When it does so, warm air is ___5___ out. When this
warm air mixes with the surrounding cold air, a ___6___ is
produced. The spout is actually a spray of mist.
The biggest ___7___ of whale is the blue whale. Although it
is large it does not ___8___ on smaller fish or other sea
creatures. Instead it fees ___9___ plankton. On the other
___10___, the killer whale, which is the smallest species of
whale, feeds on fish, seals, penguins and even other whales.
___11___ interesting fact about killer whales is they can be
___12___ in captivity. Killer whales have been trained to
___13___ in a number of marine parks or waterworlds all over the
world. They are indeed clever at performing tricks. They have
also been featured in movies, one of which as 'Free Willy'. |
