The Halibut swims sideways due to its lateral flattening , and most adults have both eyes on their upward - facing side .
The Halibut ( pacific ) is the largest flatfish in the family Pleuronectidae .
The Halibut swims sideways due to Halibut 's lateral flattening , and most adults have both eyes on their upward - facing side .
The Halibut ( pacific ) is the largest flatfish in the family Pleuronectidae .