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Butterflies have ingenious ways of protecting ___1___
from their enemies.
One variety, ___2___ as the monarch, gives out body
juices that make
___3___ taste horrible to its
___4___, the butterfly
feeders.
Another variety, the viceroy, has come to ___5___ like
the monarch
through a ___6___ of change called natural selection.
Birds sometimes
___7___ it for a monarch and stay away from it.
The Chryxus artic, another butterfly, ___8___ the
darkness of its wings
according to the kind of rock it rests on to ___9___
with the surroundings. Some
butterflies resemble dead leaves when they lie ___10___, making
it ___11___ for birds to spot them. Some shut their
wings tightly to ___12___ their colorful wings. The
underside of the butterflies, which is
___13___ a dull color, fades
___14___ the surroundings.
Perhaps, the most interesting camouflage is ___15___ of
the owl butterfly. It
has a pattern on its wings that ___16___ the eyes of the
owl. Some birds
___17___ it because they think it is an owl! Even the butterfly larvae have
___18___ of protecting
themselves;
some ___19___ spikes on their bodies and others give off
a bad smell ___20___ they are disturbed! |
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| Answers |
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themselves
2. known 3. it 4. predators
5. look 6. process 7.
mistake 8.
changes 9. blend 10. still 11.
difficult 12. hide 13.
of 14. into 15. that 16.
resembles
17. avoid 18. ways 19. have
20. when |
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Butterflies have ingenious ways of protecting
themselves
from their enemies.
One variety, known as the monarch, gives out body
juices that make
it taste horrible to its
predators, the butterfly
feeders.
Another variety, the viceroy, has come to
look like
the monarch
through a process of change called natural selection.
Birds sometimes
mistake it for a monarch and stay away from it.
The Chryxus artic, another butterfly,
changes the
darkness of its wings
according to the kind of rock it rests on to
blend
with the surroundings. Some
butterflies resemble dead leaves when they lie
still, making
it difficult for birds to spot them. Some shut their
wings tightly to hide their colorful wings. The
underside of the butterflies, which is
of a dull color, fades
into the surroundings.
Perhaps, the most interesting camouflage is
that of
the owl butterfly. It
has a pattern on its wings that
resembles the eyes of the
owl. Some birds
avoid it because they think it is an owl! Even the butterfly larvae have
ways of protecting
themselves;
some have spikes on their bodies and others give off
a bad smell when they are disturbed! |
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