Mammals keep what with hair or fur?
coat wool energy nektar warm cold shivering hydrated
A B C D E F G H
Birds waste a lot of body heat trying to keep warm in exposed areas.
Mammals keep warm with hair or fur
Mammals keep what with hair or fur? (A) coat (B) wool (C) energy (D) nektar (E) warm (F) cold (G) shivering (H) hydrated