ANIMALS AT NIGHT
How do
nocturnal animals find their way in the dark? Domestic cats have that can adapt
to darkness. But in the wild, the mechanisms are more sophisticated. The eyes
of an owl contain a large number of rod and nerve cells. These cells respond to
dim and light and to changes in light intensity. Would you believe it if you
are told that an owl can detect a moving mouse in one millionth o a candle
power of light? Snakes make use of their sense of smell. Their tongue picks up
smell particles around them. Some animals have a sort of kinesthetic sense
which helps them to move about at night in familiar territory. Today, with very
sophisticated cameras and lighting devices, it is possible to photograph and
make recordings of the cries of animals in their dark and inaccessible forest
haunts.
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