Page 26 - The World of Animals

more developed than that of man. For this reason, their sense of
smell is superior to man's.

By means of all these abilities, dogs can sense the smell of prey,
trace it and fetch a hunter's catch even if it is kilometres away. A sniff

of something belonging to a person suffices for a police dog to find
its owner. Those huge flabby-cheeked dogs the Saint Bernards, for

example, can easily detect injured people stuck beneath the snow

24 with their sensitive noses and rescue them. This extraordinary sense of
smell that dogs have is itself a miracle.
Dogs also use their noses to

breathe air. Passing through
the nose, air is filtered,

warmed and moisturised and
then it makes its way to the

lungs.
Unlike human beings, these

creatures do not sweat to
regulate their body

temperatures, because there
are no sweat glands in their

body. Regulation of body