Freshwater habitats around the world are becoming less and less hospitable to wildlife
Adaptations to deepwater living make the fishes of the deep sea particularly vulnerable to overfishing.
Human ailments as varied as hernias, hiccups, and choking are a legacy of our “fishy” ancestry.
Good thing for us it’s small, because this predator gives no quarter to its quarry.
Discoveries of more complete remains of cartilagenous fishes have shed new light on the prehistory of sharks and their relatives.