On older versions, v1-v4.5, a Tama Could die as a teen, as it would take more than a day for it to evolve, but with newer versions, v5-Tama-Go, after a day of being a teen the Tama evolves, so tama's can only really die at any stage on v1-v4.5, as the time between evolutions is long enough, although any tama's dying is upsetting...