Humans have the most sensory neurons of any terrestrial species, 18.83B,
with more than twice as many as the runner up western gorilla. There are
three aquatic species with more than humans and seven more with more
than the western gorilla. The killer whale with more than twice as many
as humans, long-finned and short-finned pilot whale with a little less
than twice humans. With that many sensory neurons it would be assumed
that those would be the species with the most emotional disturbance from
anthropogenic influence. There is no data on killer whale endangerment,
and both long and short finned pilot whales are LC, ranking them 23rd
and 24th most disturbed species. It is important for us to consider what
the species means to them in evaluating what species we should care
about, it would be beneficial to base that on what species care about
themselves the most.