False
The coelacanth does indeed move its four limb-like fins in an alternating fashion just as landlubber tetrapods do, with the right front fin working in synchrony with the left rear fin and the left front with the right rear. (Picture a dog walking.) But instead of walking along the seabed, the fish glides through the water like a slow bird, and can swim forward, backward, and belly up. Coelacanths have even been seen periodically performing headstands for up to two minutes at a time.