Hippos do not sweat blood as against popular belief because…
If a pig weighed as
much as a pickup truck it might look something like a river hippopotamus. A
hippopotamus, or hippo, is an animal that lives in Africa. Like a pig, it has a
tubby body, big head, and short, thick neck. In fact, the hippopotamus is a
distant relative of the pig.
Little Hippos and
Big Hippos
There are two kinds
of hippos. The pygmy hippopotamus stands no more than waist-high to an adult
human. It is about 6 feet (about 2 meters) long and weighs about 600 pounds
(about 270 kilograms). This hippopotamus has greenish-black skin. It lives in
the forest, on or near riverbanks.
The river
hippopotamus is bigger and has reddish-brown skin. It can grow to a length of
16 feet (5 meters). That’s longer than most cars. A river hippopotamus can
weigh more than 8,800 pounds (4,000 kilograms). That’s more than the weight of
45 big men combined!
Where do hippos
live?
River hippos live
half their lives in water. They float and let the water carry their great
weight. They rarely sink completely below the surface, however. Instead, they
paddle around with the tops of their heads sticking out of the water. A river
hippo’s eyes, ears, and nose are all at the top of its head. It can breathe and
see what’s going on even while most of its body is below water.
If it has to, a
river hippopotamus can go underwater and hold its breath for as much as half an
hour. River hippos can swim underwater, or walk on the river bottom. Pygmy
hippos can swim, too, but they spend less time in the water. They stay mostly
on the riverbanks.
A million years
ago, hippopotamuses lived all over Europe, Asia, and Africa. Now they live only
in parts of Africa. There are only about 150,000 river hippos left. Pygmy
hippos are down to a few thousand animals.
Do hippos sweat
blood?
Hippos cannot sweat
like humans do. All hippos, however, ooze a type of oil from their skin. A
river hippo’s natural skin oil is red. People used to think these animals
sweated blood, but that’s not true.
A hippo’s skin oil
is like lotion. Hippos have thin skin for such big mammals, and it dries out
easily. The oil keeps a hippo’s skin from cracking in the heat.
Life among Hippos
Hippos live in
herds of 15 or more animals. During the day, they like to crowd together. They
like to swim or wallow in the mud with their bodies touching. At night,
however, they split up. They go out in search of food alone. For a hippo,
eating is private.
Can hippos hurt
you?
A hippopotamus eats
only vegetables. Still, you wouldn’t want to get too close to one. Their size
and weight alone makes them dangerous. In rivers, they can overturn boats just
by pushing at them. On land, they trample plants and damage crops. They are known
to have a temper, too. Their huge jaws are studded with spike like teeth. A
hippopotamus can bite a crocodile in half.
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