One of the industry’s biggest players — Bird — was a pre-pandemic “unicorn” that grew to be worth upwards of $1 billion. Now it’s bankrupt.

The numbers reveal a spike in gnarly fractures and traumatic brain injuries for both scooter riders and pedestrians hit by scooters.

The personal vehicles are gaining ground as riders navigate a patchwork of differing rules.

Uber's recent investment in Lime scooters is part of a deal that values the company at $1.1 billion.