They're a keystone species, have culture and language (probably older than any human one), they mourn their dead, and on and on...
Not trying to be a jerk or anything (I'm also a vegetarian) but just wanted to bring this up in case anybody else was a bit curious about what the term meant or had maybe heard of the term before and was confused as to why it was included here. I'm also clearly open to a arguments discussing why a keystone species is inherently conscious.