
He was replaced by a superior SPECIES.
The Big Bang Theory Season 4, Episode 24

Man is not the only SPECIES
that ferments fruit...
The Big Bang Theory Season 4, Episode 24

On the other hand, I think Sheldon
might be the larval form of his SPECIES.
The Big Bang Theory Season 2, Episode 6

it would be by an advanced
SPECIES from another planet,
The Big Bang Theory Season 5, Episode 19

But your SPECIES
craves death.
Westworld Season 2, Episode 10