The thick fur traps air, which insulates the reindeer from the cold and helps the reindeer float in water.
(The thick fur traps air; insulates; the reindeer; from the cold) (The thick fur traps air; helps; the reindeer float in water)
The thick fur traps air The thick fur traps air
insulates helps
the reindeer from the cold
the reindeer float in water