Pig to human heart transplants are the future. Are we ready for it?

Xenotransplantation promises to solve organ shortage and to reshape how we think about human longevity, but it also raises a host of questions

Shards of electricity burned through Mr P's flesh. Layers upon layers of subcutaneous fat unraveled, filling the operating room with a pungent, metallic odor, like singed hair at the neighborhood barbecue. Within a few minutes, the pearly white bone of the sternum stuck out before a vein split open, filling the operative field with blood.

Zap! Maroon juice turned into a crackly black mass.