Does the Tyrannosaurus in Jurassic Park see things that stand still?

Verdict: Explained. 42% of viewers say this is dumb. Top defense: Grant is only guessing how the animal sees, and the film never confirms his theory.

Explained
42% dumb58% explained

450 votes

Dumbness rating

5.6/ 10(450 ratings)

Explained. More viewers say this scene is explained than dumb, so it does not count toward the title score.

Breaks its own rulesBroken science

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What happens in this scene

Alan Grant tells the children that the Tyrannosaurus cannot see them if they stand still. The animal then reacts to a parked car and a stationary group. The film does not say whether Grant was right.

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Reviews 2

dr_halloranVerified expert: Emergency medicineSupporter4/10AI rewriteAug 30, 2026

Says explained

Grant is guessing, and the film shows him being wrong more than once. A character's theory failing is not a flaw in the film.

rocketry_rob6/10Oct 24, 2026

Says dumb

The idea is stated as a rule and then broken within the same sequence. The film would work with either version, but it should pick one.

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Actually, it’s explained

Top defense
Grant is only guessing how the animal sees, and the film never confirms his theory.
  • DumbScenesStaff7 months ago

    Grant is only guessing how the animal sees, and the film never confirms his theory.

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Also asked as

  • Can the T. rex only see movement?
  • Why does the T. rex find them when they stand still?