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Ice Age: Dawn of the Dinosaurs (2009) Poster

Goofs

Anachronisms 

As in Ice Age and Ice Age: The Meltdown, some of the "Ice Age" creatures shown were in fact extinct before the Ice Age. (This does not count the "secret" dinosaurs they meet, which is not a goof as explained above, but to the above-ground community which Sid, Diego, and Manfred have always lived in.)
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Continuity 

When Diego first finds the tracks, Ellie makes several steps forward to join him. The next time we see her, she is standing next to Manfred again, with no indication that she moved.
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When Buck agrees to help the herd find Sid, he drops his knife to his left. When he starts explaining the rules, the knife is missing from the background, but is visible again when they start to move ahead.
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The 3 eggs are falling and Ellie manages to catch the third one. Then Sid walks down to where she is, carrying the other 2 eggs in his hands. But a minute later, (when Manny discourages him) he puts the eggs to the wooden sledge waiting nearby. The sledge was not there when Sid walked down. In fact it gets lost when Sid and the eggs are tossed into the air a few minutes ago.
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Errors in geography 

As in Ice Age and Ice Age: The Meltdown, the woolly mammoths' neighborhood includes creatures who in fact lived on different continents, and never saw mammoths.
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Factual errors 

An Ankylosaurus (large dinosaur with an armoured back and tail club) is shown attacking the main characters when they first enter the dinosaur world. Though depicted as a carnivore, this species was herbivorous. Though some have speculated that it is merely attacking the group because it felt threatened, as rhino might, it is shown with pointed, meat-eating teeth and is clearly supposed to be a carnivore.
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Rudy retains a gap in his teeth where Buck knocked one out, and seems to hold a grudge against him because of it. In reality, reptiles have an endless supply of teeth - they fall out and are replaced throughout the animal's life.
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Incorrectly regarded as goofs 

The dinosaurs famously died out millions of years before animals such as the woolly mammoth and saber-toothed tiger appeared. However it's stated in the movie that the dinosaurs they find are a few that managed to survive underground, and that the mammals thought they were extinct.
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In the movie, a relict population of dinosaurs continued breeding for nearly 65,000,000 years after their kindred became extinct. They have been sequestered away, allowing them to evolve to larger sizes as the competition would be more fierce and would need to grow bigger for the need for resources. Also, 65,000,000 years is sufficient to evolve whole new taxonomic families and orders, as mammoths, sloths, cats and humans sprung from humble roots in a fraction of that time. Since the scope of this "what if" scenario can accommodate many speculations, alleged inaccuracies about size, color, posture, diet, etc., become redundant.
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Plot holes 

While Crash, Eddie and Buck were on their way to save Sid, Buck says "roger" but Crash and Eddie couldn't understand the correct meaning. However, in Ice Age: The Meltdown Crash and Eddie used the term "roger" with correct meaning while they were checking the perimeter for Ellie.
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See also

Trivia | Crazy Credits | Quotes | Alternate Versions | Connections | Soundtracks

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