Harbour porpoise
Phocoena phocoena
LENGTH Less than 2 m / 6 ft DORSAL FIN Dark, triangular
DORSAL FIN Dark, triangular
APPEARANCE Dark grey back with lighter underside
BEHAVIOUR Inconspicuous, travels slowly; generally alone or in groups of 2–3
Photos by J. Ford and A. Morton. Illustrations by A. Denbigh, not to scale.