Astrophysicist Neil deGrasse Tyson appears to think kissing — or as he describes it,  “the simultaneous exchange of saliva” — would for some reason be “odd” to space aliens observing Earth:

So stupid. We hope if aliens do ever visit our planet, we choose someone other than Tyson to greet them lest the aliens decide to exterminate all of humanity after listening to him talk for a few minutes:

And why would the aliens think our reproduction process is “odd” in the first place? It’s science:

He does ruin everything, doesn’t he:

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