Are we getting better at reading this alien life-form?

They seem as alien a life-form to me as any I've met.

Even the most alien life-forms should conform to some established pattern.

Probably figured you'd meet lots of nice little alien life-forms that you could make friends with.

He was beginning to wonder if some alien life-form had taken over Julia's body.

"Typical of your time, I should say, when humanity had much less contact with alien life-forms than at present."

"You're saying the dinosaur was killed by an alien life-form?"

But the point is, there might have been some sort of contact with alien life-forms.

"Sometimes alien life-forms are harder to recognize than you'd realize."

I want to meet with you and review every alien life-form in the Galaxy.