Sea otters have the densest fur of any animal, and they have two layers of it that help them stay warm in cold water.
(Sea otters; have; the densest fur of any animal) (they; have; two layers of it that help them stay warm in cold water) (two layers of it; help; them stay warm in cold water) Context(two layers of it help,List([61, 87))):(them; stay; warm; L:in cold water)
two layers of it help,List([61, 87))
Sea otters they two layers of it them
have have help stay
the densest fur of any animal
two layers of it that help them stay warm in cold water
them stay warm in cold water
warm L:in cold water