The Tasmanian Tiger Is Close To De-Extinction—But What’s Next?
The Tasmanian tiger, officially known as the thylacine, hasn’t been seen in the wild for almost a century. But with advances in gene editing and cloning, this iconic Australian marsupial is edging closer to a dramatic return. For scientists, it’s a pivotal moment: can they successfully bring back an extinct species, and what will it mean for the future of biodiversity?
The Lazarus Project
Colossal Biosciences, a company pioneering de-extinction technologies, is leading the charge to revive the thylacine. Their project, named “Lazarus,” takes inspiration from the biblical story of Lazarus being raised from the dead. It’s a fitting moniker, given the monumental challenge and ambition behind this project.
The project relies on advanced gene editing techniques and a groundbreaking method called “genome reconstruction.” Scientists are piecing together the thylacine’s genome using fragments from preserved museum specimens. They are also looking at its closest living relative, the Tasmanian devil, to identify similarities in DNA.
A New Species, But Will It Be Enough?
Despite its name, the Tasmanian tiger wasn’t actually a tiger at all. It was a marsupial predator that resembled a dog, with striking tiger-like stripes. However, the Lazarus project doesn’t aim to recreate an exact replica of the extinct thylacine. Instead, scientists aim to create a “proxy species,” one that will exhibit similar traits, including its characteristic stripes and physical features. This approach acknowledges the limitations of genetic engineering while pursuing the essential ecological functions the thylacine once filled.
The Debate Around De-Extinction
The potential of bringing back extinct species is met with a mixture of excitement and skepticism. Supporters champion its promise for restoring ecosystems, understanding biodiversity, and advancing scientific knowledge. Critics raise concerns about ethical dilemmas, potential ecological disruptions, and the potential distraction from focusing on existing biodiversity challenges.
Concerns surround the unpredictable nature of a “de-extinct” animal’s behavior. Even with gene editing, a revived thylacine might not have the instincts to thrive in a changed environment. Additionally, questions regarding ethical considerations about introducing a genetically engineered species into the wild are complex. The impact on existing wildlife, the possibility of genetic contamination, and the challenges of creating suitable habitats need thorough consideration.
The Future of De-Extinction
While bringing back the thylacine is a remarkable achievement within reach, its impact on biodiversity is not a simple solution. The broader implications of de-extinction on ecosystems, scientific understanding, and the ethical landscape require extensive debate.
For the moment, the focus is on ensuring the feasibility and safety of the “Lazarus” project. Should Colossal Biosciences succeed in producing viable embryos, the journey for this resurrected creature has just begun. The project represents not just the quest for de-extinction but also a window into the future of genetics and our relationship with the natural world.
Ultimately, the Tasmanian tiger’s potential resurrection is a catalyst for discussion. It compels us to confront questions about our responsibility to extinct species, our role in shaping future ecosystems, and the limits of scientific ambition.
