A
hippopotamus
has
a
round
body.
It
has
short,
thick
legs.
The
skin
on
its
legs
can
be
two
inches
(5
cm)
thick.
Its
head
is
big.
It
can
shut
its
ears
and
nose
to
keep
water
out.
Hippopotamuses
live
in
Africa.
They
can
usually
be
found
in
lakes,
rivers,
and
swamps.
They
stand
in
shallow
water.
Sometimes
they
walk
along
the
bottom.
A
hippopotamus
might
be
in
the
water
for
16
hours
a
day.
Hippopotamuses
eat
grass.
They
use
their
lips
to
tug
on
the
grass.
At
night,
they
leave
the
water
to
graze.
They
can
eat
80
pounds
(36
kg)
of
grass
in
one
night.
Baby
hippopotamuses
are
called
calves.
Many
calves
are
born
underwater.
A
calf
often
rides
on
its
mother’s
back.
Hippopotamuses
live
in
groups.
A
hippopotamus
can
live
for
40
years
in
the
wild.



