Genetically Modified Gray Wolves Exhibit Dire Wolf Traits Through DNA Insertion

The National Center for Wildlife clarified that the recently announced pups resembling dire wolves are not clones. Instead, they are genetically modified gray wolves. Experts at the center explained that 14 genes were inserted into the gray wolf, some from dire wolf fossils and others from dogs. This resulted in a creature with 99.5% of its genetic makeup from the gray wolf but with physical traits similar to the dire wolf.

These modifications include larger size, white fur, a thicker tail, denser skin, and bigger fangs. The dire wolf was native to the Americas and went extinct around 13,000 years ago. The center emphasized that these animals are not clones of the extinct species but rather modified versions of existing gray wolves using CRISPR-Cas9 technology.

The center raised concerns about environmental risks associated with such projects. They warned that introducing genetically modified species could disrupt ecosystems by affecting food chains or spreading diseases to other species. The potential interbreeding with gray wolves might also threaten biodiversity by diluting original genetic lines.

CRISPR-Cas9 technology has been used for decades in agriculture and domestic animals. However, its application to an extinct wild species brings up ethical questions about human intervention in nature. The center stressed the importance of focusing on conserving endangered species through scientifically sound programs instead of reviving those extinct for millennia.

The center noted that the company's announcement lacked a peer-reviewed scientific paper, which is standard practice for such experiments. This absence raises doubts about the credibility of their findings. Without peer review, it's challenging to verify the claims made about this genetic modification project.

Experts highlighted that while CRISPR-Cas9 is not new, its use in this context is unprecedented. The implications of modifying a wild species' genetics remain largely unknown, making it crucial to proceed cautiously with such interventions.

The center's experts also pointed out that understanding these creatures' genetic and behavioral traits is essential before considering their introduction into natural habitats. Without comprehensive studies, it's impossible to predict how these modified animals might interact with existing ecosystems or affect native species.

With inputs from SPA