Cold-adapted animals, however, have two protective devices that we lack: insulating layers of fat, and thick coverings of hair.
(Cold-adapted animals; have; two protective devices that we lack: insulating layers of fat, and thick coverings of hair) (we; lack; two protective devices that we lack: insulating layers of fat, and thick coverings of hair)
Cold-adapted animals we
have lack
two protective devices that we lack: insulating layers of fat, and thick coverings of hair
two protective devices that we lack: insulating layers of fat, and thick coverings of hair