Whales
are
marine
mammals
.
They
are
____________________
because
they
have
a
____________________
made
of
bones
.
They
are
____________________
because
they
are
born
from
their
mother's
____________________
.
They
drink
their
mother's
____________________
.
They
have
____________________
skin
.
They
breathe
through
____________________
so
they
need
to
get
oxygen
from
the
____________________
.
This
is
why
they
come
to
the
surface
.
