- Woodrats can survive venomous rattlesnake bites in nature.
- They are small rodents that weigh very little.
- A genetic change gives them extra protection.
- Scientists looked at a family of genes.
- Some genes in the family can bind venom.
- Other gene versions do not bind venom.
- Copying of genes can make new versions.
- This change helps woodrats survive snake attacks.
- Researchers want to understand how this works.
- The findings may explain animal resistance to venom.
Difficult words
- venomous — has poison in its bite or sting
- genetic — related to genes or DNA in organisms
- bind — to join or stick to something
- copy — to make the same thing againCopying
- resistance — ability to stop harm from a poison or disease
Tip: hover, focus or tap highlighted words in the article to see quick definitions while you read or listen.
Discussion questions
- Have you seen a snake before?
- Are you afraid of snakes?
- Would you like to learn about genes?
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