FANTASTIC BEASTS roam Silicon Valley. Locals are familiar with the unicorn, a startup valued at more than $1bn, the centaur (worth $100m) and the decacorn ($10bn). Lately another creature has been stalking the land: the “zombie” unicorn: a firm once worth $1bn-plus but now a mere shadow of its former self—a prospect to keep venture capitalists (VCs) awake at night. Already have an account?Log in Continue with a free trial Get full access to our independent journalism for free Free trial Or ...