Why aren't there big animals like dinosaurs anymore?
Imagine This
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The Biggest Types of Dinosaurs
Around 100 million years ago, we can see some of the biggest types of dinosaurs. At this time, volcanoes were way more common and they erupted a lot more than any other time in Earth's history. How did they get to be so big? Evolution is how living things change over a long time to be the strongest for where they live.
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