At first glance, this mammal looks like a horse gone terribly wrong. But, in reality, Chalicotherium is far from a botched ...
A fossil from the blustery plains of Patagonia is revising your book on one of the most elusive bands of hunting dinosaurs. The newly discovered dinosaur, Joaquinraptor casali, preyed on the soggy ...
The evolution of animal visual systems and their associated photoreceptor genes represents a vibrant field of study that bridges molecular biology, ecology and neurophysiology. At the core of these ...
An international team of scientists has uncovered a fascinating piece of the evolutionary puzzle: how the ventral nerve cord, a key component of the central nervous system, evolved in ecdysozoan ...
Papers presented at the 7th Spring Systematics Symposium of the Field Museum, Chicago, May 1984. Homology, analogy, and the evolution of behavior / George V. Lauder -- Social and unsocial behavior in ...
Scientists have confirmed that the Atlas blue butterfly carries the most chromosomes of any animal, with 229 pairs. Unlike duplication, its chromosomes split apart, reshaping its genome in surprising ...
Fossil discovery reveals the Grand Canyon was a 'Goldilocks zone' for the evolution of early animals
A treasure trove of exceptionally preserved early animals from more than half a billion years ago has been discovered in the Grand Canyon, one of the natural world's most iconic sites. The rich fossil ...
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