Study Suggests Humans Are Behind Mass Extinction Of AnimalsA mass extinction - the sixth of its kind in our 4.5-billion-year history - is well underway and humans are to blame.
Best Reptile Pet Shops San Francisco

More From CBS San Francisco

Get The New CBS SF Bay Area Local App
LIVE: Monday through Friday from 3am – 3pm PST
Dedicate A Bay Bridge Light

Watch & Listen LIVE