New small mammal species from the dinosaur era ^{CEFR A1}

Difficult words

• fossil — the preserved remains of an animal or plant
• species — a group of similar living animals or plants
• skull — the bones that protect the head and brain
• bone — a hard part inside an animal body

  bones
• climb — to go up using hands and feet

  climbed
• tooth — a hard part in the mouth for chewing

  teeth

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