Question

what controls the rate of breathing in aquatic animals

Answer 1

Scientists have investigated what part of the body is responsible for maintaining the respiratory rhythm. They found thatneurons located in the brainstem of fish are responsible for the genesis of the respiratory rhythm. The position of these neurons is slightly different from the centers of respiratory genesis in mammals but they are located in the same brain compartment, which has caused debates about the homology of respiratory centers between aquatic and terrestrial species.