Porcupine Ray ( Urogymnus asperrimus). Cutest porcupine ray ever! These shy and distinctive- looking rays with spikes (dermal denticles) can be ... <看更多>

A giant freshwater whipray, scientifically known as Urogymnus polylepis, was rescued from a fisherman's hook in the Mekong River of Stoeng ... ... <看更多>