One other character of note featured in the film?
An alligator, as is revealed in EWs exclusive first look photo, above.
It is their first tangible encounter with something strange, says Garland.

Credit: Peter Mountain
The alligator has physical elements to it that should not belong on an alligator.
Theyre starting to get their heads around how weird the place is.
Isaac recently promised EW thatAnnihilationwould be very weird and very beautiful.Thats what we were shooting for, says Garland.
The beauty part of it was quite important.
But its not something I like doing.
I think that provokes a sort of instant, understandable, cynicism.
We sense the money grab and I feel that pollutes the story.
If other people wanted to do that, that would be fine.
Thats none of my business.
But from my point of view, its just one.
Annihilation a Paramount Pictures and Skydance presentation is in theaters Feb. 23, 2018.