Scientists want to bring mammoths back to life

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Across
  1. 3. An area of study, activity or interest.
  2. 4. Of a species, family, or other larger group that has no living members.
  3. 5. The action of make changes in something to make it better, more modern, etc.
  4. 7. A person who has a lot of knowledge about or skill in a particular area.
  5. 10. A group of living things that are in the same family / type.
  6. 11. Very, very, very big.
  7. 12. A person who sets up a business or businesses.
Down
  1. 1. An animal, but not a human being.
  2. 2. Bring back to life.
  3. 6. An animal or plant from history, which today's animals and plants came from.
  4. 8. Made available for use; supplied; gave.
  5. 9. Make or cause to become better and better.
  6. 13. Very quickly.