Smart, passionate and seditious

The New York Times Book Review

A pioneering study … If you thought it all began with the extinction of the non-bird dinosaurs … think again.

Nature

Under Ms. Panciroli's adroit tutelage, the Carboniferous and Permian (pre-dinosaur) periods are brought to life … she regularly enlivens this surprisingly readable book with quick and often humorous observations.

The Wall Street Journal

Fascinating ... filled with as many weird and wonderful creatures as any reptilian tale ... there's much here to intrigue.

Geographical

Provides a fascinating and uplifting look at the resilience of life on this planet, through the lens of how mammals came to be.

Writer's Voice