People find one hundred and fifty pieces of fossils. They find them under a river. The river is in Iowa, USA.
The fossils belong to an animal. This animal lived 0.5 billion years ago. It was a predator – an underwater scorpion. It was 170 centimetres long. However, 50% of its body was the tail. The animal had 12 arms at the front.
Difficult words: fossil (when an animal dies a long time ago and turns into a rock), was (past of “is”), predator (an animal which catches and eats other animals).
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