A coelacanth, known by some as the "dinosaur fish," was spotted in eastern Indonesia in a rare sighting of a species once ...

It sounds unbelievable, almost absurd, but it’s astonishingly true: every human, along with birds, reptiles, and mammals, owes their existence to curious, fleshy-finned fish that swam the Earth ...

They look more like frogs than fish with their leg-like fins and their quick-snapping jaws, but they are actually all fish.

Fossils of Tiktaalik roseae blended fins with hints of limbs and sported a flat head suited for peering above the waterline.

Coelacanths are one of the last remaining lobe-finned fish, which have muscular limb buds within their fins. Coelacanths have a electrosensory organ in their snout known as the "rostral organ ...