Hendrik Poinar — Dutch Scientist born on May 31, 1969,

Hendrik Nicholas Poinar is an evolutionary biologist specializing in ancient DNA. Poinar first became known for extracting DNA sequences from ground sloth coprolites. He is currently director of the Ancient DNA Centre at McMaster University in Hamilton, Ontario... (wikipedia)

I laughed when Steven Spielberg said that cloning extinct animals was inevitable. But I'm not laughing anymore, at least about mammoths. This is going to happen. It's just a matter of working out the details.
Every outbreak across the globe today stems from a descendant of the medieval plague.
If we brought the mammoth back to Siberia, maybe that would be good for the ecosystems that are changing because of climate change.
We know African and Asian elephants can interbreed, and they're separated by 5 million to 6 million years.
There is no good scientific reason to bring back an extinct species. Why would one bring them back? To put them in a theme park?