The Woolly Mammoth’s Comeback Is Taking Longer Than Expected

Colossal Biosciences has pushed back its woolly mammoth revival timeline to the early 2030s, up from its original 2028 target, after discovering the process requires editing around 150 genes instead of the initially estimated 60. Despite the delay, the company made progress by successfully reviving the dire wolf in 2025 and engineering woolly mice. Researchers are also studying elephants' remarkable cancer resistance, which could eventually benefit human medicine.