During dinner conversation, Tholan explains that he is investigating "Inhibition Death". The alien lists several unique things about humans: they are the only sentient race to eat meat, they lack any sort of telepathic ability, and to the Smolletts' great surprise, they are the only race to die of old age.
During dinner conversation, Tholan explains that he is investigating "Inhibition of Death". The alien lists several distinctive features about humans: they are the sole sentient species to consume meat, they lack any form of telepathic ability, and to the Smolletts' great surprise, they are the only species to perish from natural causes.