They drink their mothers' rich, protein laden milk, building up thick layers of blubber that insulate them from the cold northern waters.
(thick layers of blubber; insulate; them; from the cold northern waters) (They; drink; their mothers' rich, protein laden milk) Context(They drink,List([0, 10))):(They; drink their mothers' rich, protein laden milk building up; thick layers of blubber that insulate them from the cold northern waters)
They drink,List([0, 10))
thick layers of blubber They They
insulate drink drink their mothers' rich, protein laden milk building up
them from the cold northern waters
their mothers' rich, protein laden milk
thick layers of blubber that insulate them from the cold northern waters