Is DNA the key to protecting Earth's tallest species?

Uploaded: 2018-09-03T17:29:10Z
Duration: 2 min 29 s
Description: Coast redwood trees have been on Earth for more than 200 million years, but it only took humans two centuries to cut down 95% of them. Here's how Save the Redwoods League and scientists are working to protect Earth's tallest species.

Boulder Creek, California

Updated 1437 GMT (2237 HKT) September 4, 2018

Boulder Creek, California (CNN)Coast redwood trees have been on Earth for more than 200 million years, but it only took humans two centuries to cut down 95% of them. Here's how Save the Redwoods League and scientists are working to protect Earth's tallest species.