Argentine fossil reveals heron-like dinosaur that hunted fish in ancient Patagonia

Seventy million years ago, a slender predator waded the waterways of a humid Patagonia that no longer exists, hunting fish with a precision neck and crested teeth that evolution had quietly refined. Paleontologists in Argentina have now named it Kank australis, a small theropod whose anatomy mirrors that of modern herons — a convergence across deep time that speaks to how life, again and again, arrives at the same elegant solutions. The discovery, rooted in a single well-preserved neck bone unearthed in 2024, reminds us that the age of dinosaurs was not a single story but an intricate web of s