The Short Version
Multiple independent, high-authority sources — including AP News, Chemical & Engineering News, Forbes, and KNKX — confirm that Colossal Biosciences is actively pursuing woolly mammoth de-extinction through CRISPR-based genetic engineering. The company has demonstrated concrete milestones, such as engineering mammoth traits into mice, and has stated plans to edit Asian elephant genomes toward a mammoth-like animal. The claim describes an ongoing attempt, not an achieved result, and is well-supported by the evidence.