Aerial drone footage shows the humpback whale (Megaptera novaeangliae) missing its iconic lobed fluke, which is responsible for propulsion while swimming. Taken by Eric Guth under NMFS permit # 24359 ...

Skate fish and sting rays have different tails, fins, teeth, and mode of reproduction ... Skate fish produce egg cases which are known as a “mermaid’s purse”. These are extremely unusual as they look ...

Taking inspiration from aircraft when designing cars is nothing new: In the 1950s, American car designers began putting tail fins on car designs, a choice that continued well into the '60s ...

A sheathed dagger, as featured on 8 Squadron’s crest, features prominently on the new aircraft’s tail fin in an increasingly uncommon display of squadron markings on an RAF aircraft.