Horses bled for antivenom, crabs drained for endotoxin tests, and silkworms boiled for silk. Science can now replace these practices with synthetic alternatives — but we need to find ways to scale them up.
In many ways, this horse is normal: it stands roughly 14 hands high, has dark eyes hooded by thick lashes, and makes a contented neighing sound when its coat is stroked. But its blood pulses with ven… [+28834 chars]
