“Insane” – a discovery of bizarre fish overthrows a long -standing hypothesis in evolutionary biology

The male spotted spot-tape has real teeth on a frontal appendage used for mating. In vertebrates, the teeth share many determining features. Whatever their shape, their size or their sharpness, they come from the same genetic origins, have similar physical characteristics and are generally found in the jaw. Recent discoveries question this long -standing hypothesis. Spotted fish, resembling a shark […]