- Scientists found many animal species that were hidden recently.
- These animals can look almost exactly the same to people.
- But their DNA shows they are genetically different.
- Some hidden species may have evolved for a long time.
- There may be twice as many species overall worldwide.
- Hidden species can be at risk of extinction today.
- If a species is not known, it lacks legal protection.
- Researchers used DNA methods and many scientific studies.
Difficult words
- species — a group of similar animals or plants
- hidden — not seen or known by people
- genetically — in the DNA or the genes of living things
- evolve — to change slowly over many yearsevolved
- extinction — when a species stops living anywhere
- protection — legal help or actions to keep animals safe
Tip: hover, focus or tap highlighted words in the article to see quick definitions while you read or listen.
Discussion questions
- Have you seen animals that look almost the same?
- Would you like to learn about hidden species?
- Do you think unknown species need protection?
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