- Source: CNN " data-fave-thumbnails="{"big": { "uri": "https://media.cnn.com/api/v1/images/stellar/prod/180903123514-redwoods-dna-cropped-vr.jpg?q=x_2,y_0,h_1078,w_1915,c_crop/h_540,w_960" }, "small": { "uri": "https://media.cnn.com/api/v1/images/stellar/prod/180903123514-redwoods-dna-cropped-vr.jpg?q=x_2,y_0,h_1078,w_1915,c_crop/h_540,w_960" } }" data-vr-video="true" data-show-html="" data-byline-html="" data-timestamp-html="" data-check-event-based-preview="" data-is-vertical-video-embed="false" data-network-id="" data-publish-date="" data-video-section="" data-canonical-url="" data-branding-key="" data-video-slug="redwoods DNA vr v2" data-first-publish-slug="redwoods DNA vr v2" data-video-tags="" data-details="">
redwoods DNA CROPPED vr
Is DNA the key to protecting Earth's tallest species?
02:28 - Source: CNN
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.

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.