Is this how resurrection will work?

By Richard Black
Environment correspondent, BBC News website

Every shell hides a story...

An extinct Galapagos tortoise species could walk again, scientists believe.

......Cross-breeding these living tortoises might re-create the extinct species - though it could take a century.

"We might need three or four generations to do this," she told BBC News.

"But in theory it could be done, and I think it's pretty exciting to bring back from the dead a genome that we thought was gone."