This opens the way not only for other Great Apes, but also for other sentient beings which are unfairly and arbitrarily deprived of their liberty in zoos, circuses, water parks and scientific laboratories. (slaw.ca)
Then it follows that the only reason other sentient beings, us for example and perhaps some other mammals, create or procreate is because they feel lacking or deficient in some way. (redeeminggod.com)
Engaging deeply with the world and with other sentient beings brings meaning and purpose. (scientificamerican.com)