There are constant reminders in our everyday surroundings of the many chapters of life that have unfolded on Earth.
Rocks and dirt preserve evidence of the epochs that came before ours, such as the oldest known fossilized forest on the planet where unusual trees once grew 390 million years ago.
Fossils reveal the diversity of life that has flourished and disappeared over millennia, and graves tell the stories of humans who lived through unimaginable hardship centuries ago.
The one constant about life on Earth is that it changes continuously. Even scientists can’t agree on whether or not a new chapter of Earth’s history has begun.
While it may seem impossible to bring long extinct creatures back to life, scientists are achieving breakthroughs that could enable a comeback, perhaps in the not so distant future.
An ambitious plan to genetically engineer a woolly mammoth — a giant that hasn’t roamed Earth in 4,000 years — has taken another step toward reality.
Colossal Biosciences, a Dallas-based company aiming to create a mammoth hybrid that looks exactly like its extinct counterpart, has reprogrammed cells from an Asian elephant.
The species is the closest living relative to the woolly mammoth.
Continue here: CNN
Ask me anything
Explore related questions
