A key piece of information I’m missing here is how well-myelinated orca brains are compared to human brains.
A quick Google search (1) suggests that “unmyelinated axon conduction velocities range from about 0.5 to 10 m/s, myelinated axons can conduct at velocities up to 150 m/s.” This seems even more significant in orcas than in humans given their larger brain and body size.
A key piece of information I’m missing here is how well-myelinated orca brains are compared to human brains.
A quick Google search (1) suggests that “unmyelinated axon conduction velocities range from about 0.5 to 10 m/s, myelinated axons can conduct at velocities up to 150 m/s.” This seems even more significant in orcas than in humans given their larger brain and body size.