Midway through Boyce Upholt’s mind-boggling dispatch, one of his sources sums up the central challenge of the Gulf Coast canid: “Why is there not just a simple explanation for what this thing is?” The “wolfy coyotes” of southeastern Texas hold genetic traces that may link them to red wolves, which were declared extinct in the wild in 1980. But a lack of data makes it challenging to define the species—or, for that matter, to determine whether a private company has cloned the red wolf or something else entirely. Upholt doesn’t deal in simple explanations; the pleasure, here, is in the complexity.

The concept of a “species” is less sturdy than your high school biology teacher might have led you to believe. The most familiar definition is that a species consists of animals that can produce fertile offspring. But that’s a rule various species of canids violate all the time; it’s long been clear that North America’s soup of Canis genes is something less like a family tree and more like a river—one that’s broken by islands and sandbars into many braided channels that split and merge and re-split.

More fascinating reads about extinction

Reversing Extinction

Sadiah Qureshi | Aeon | March 12, 2026 | 3,186 words

“Technologies of preserving and reviving organisms are already redefining the meaning of life, death, and extinction itself.”

The Last of Their Kind

Elena Kazamia | Nautilus | April 18, 2025 | 2,569 words

“Are efforts to resurrect the northern white rhino more technological hubris than genuine conservation?”

Anatomy of an Extinction

Jackie Flynn Mogensen | Mother Jones | April 21, 2025 | 3,393 words

“How climate disasters, human sprawl—and now Trump—are coming for America’s largest salamander.”