no
to smell for their food and smell if their predators are near by
well killer whales are least concern but before japan killed dolphins soo now their survival status is common but WWF is working on it with the help of captivity in aquariums their common soon they will be least concern but their fine dont worry and in some places its illegal to kill dolphins!!
dolphins survival
humans are making it harder for dolphins
skin
Least Concern.
here status is 350,000 i think
Their endangerment status is Of No Concern.
Just one dolphin is hard to say but now most dolphins are going extinct. (The question should have been what is the dolphins status because that question is answered)
bad
the monkeyssurvial status