Dark
spots
and
tiny
scales
cover
a
trout’s
skin.
Trout
have
a
small,
fatty
fin
near
their
tails.
This
fin
is
called
an
adipose
fin.
Some
trout
species
live
in
oceans.
However,
trout
mostly
live
in
cool
freshwater.
Many
live
in
rivers
and
streams.
Some
trout
live
in
lakes.
Trout
eat
many
different
insects.
They
also
eat
fish
eggs
and
small
fish.
Some
eat
small
crustaceans.
Young
trout
eat
mostly
plankton.
Female
trout
dig
holes
in
the
gravel
at
the
bottom
of
streams,
lakes,
and
oceans.
They
lay
their
eggs
there.
Then
a
male
fertilizes
the
eggs.
Baby
trout
are
called
fry.
Trout
live
an
average
of
seven
years.



