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Show words looked up
Word |
# |
Date |
Definition |
Site |
Level |
| mastodon |
1 |
today |
a very large extinct mammal. Several kinds of mastodons lived in Africa, Europe, Asia, and North America tens of thousands of years ago. The last kind of mastodon became extinct at the end of the last Ice Age. Mammoths and modern elephants may have developed from earlier mastodons. |
Kids |
Ch. |