Tasmania Extinction explores the tragic, intertwined fates of the Tasmanian Tiger (Thylacine) and the indigenous Palawa people, arguing that their demise stemmed from the same roots of colonial violence and ecological destruction. The book uncovers unsettling parallels in how both the Thylacine and the Palawa were perceived as impediments to colonial progress, leading to systematic persecution. For instance, a bounty system encouraged the killing of Thylacines, while the "Black War" aimed to eliminate the Palawa, revealing a shared ideology of domination.

Beginning with an introduction to the unique characteristics of the Thylacine and Palawa society, the book then develops a historical narrative, examining the policies and practices that led to the Thylacine's extermination and the near-eradication of the Palawa people, including forced relocations and reserves. It draws upon historical archives, government records, and oral histories to construct a multi-faceted account.

The book's value lies in its parallel analysis, revealing the underlying ideologies that fueled both tragedies and offering insights into contemporary environmental issues, reconciliation, and indigenous rights. This examination offers a crucial understanding of colonial dynamics and their lasting effects on both the environment and indigenous communities. By connecting ecological and social injustices, Tasmania Extinction challenges conventional narratives and highlights the urgent need for conservation and ethical engagement, providing practical considerations for a more sustainable and just future.