@CNN: This 27,000-year-old tooth of a giant ground sloth, which could reach over 13 feet tall during its lifetime, is like a climate time capsule https://t.co/oaPdGJykSg https://t.co/Qh5MtL5q4g

@CNN: This 27,000-year-old tooth of a giant ground sloth, which could reach over 13 feet tall during its lifetime, is like a climate time capsule https://t.co/oaPdGJykSg https://t.co/Qh5MtL5q4g