Colossal Biosciences Non-Invasive Blood Cloning: The Best Inventions of 2025

Cloning can be a vital tool for saving some of the 47,000 species threatened with extinction. Colossal Biosciences -- the company that famously de-extincted the dire wolf -- has found a way to make it easier. Cloning previously involved surgically harvesting skin or tissue cells from the donor animal, but Colossal has successfully cloned animals using endothelial progenitor cells (EPCs), which line blood vessels and can be harvested with a simple blood draw. EPCs are also heartier than skin cells, and divide faster. "As biodiversity loss accelerates worldwide," says CEO and co-founder Ben Lamm, "EPCs offer a more humane, efficient pathway to safeguarding genetic heritage for future generations."