
A raccoon virus just
crossed the SPECIES barrier
The Big Bang Theory Season 7, Episode 6

Yes, but not of the same SPECIES.
The Big Bang Theory Season 1, Episode 1

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

If science ever discovers a second member
of your SPECIES...
The Big Bang Theory Season 2, Episode 2

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