Browse 150+ swordtail fish stock illustrations and vector graphics available royalty-free, or start a new search to explore more great stock images and vector art. Collection of freshwater fishes ...

A swordtail (Xiphophorous helleri) is a vibrant freshwater fish native to Central America, particularly Mexico and Guatemala.

This Graphium policenes is one of nearly 40 species of swordtail butterflies known to inhabit Africa. Photograph by Rebecca Hale, NGM staff Farmer Philippe Andé finds solace in the creatures.

Any advice is welcome. A: Neale replies: Female Platies, at least, will not cause problems for your Swordtails. Your male Swordtail will simply view them as potential mates, and act accordingly. So, ...

My research interests are in sexual selection, variation in female mate preferences, and the evolution of alternative reproductive strategies. In my laboratory, we are interested in the evolutionary ...

Males have an extended caudal fin, which is the origin of the swordtail’s name. Swordtails are peaceful and hardy fish that ...

Along with the related Swordtail (Xiphophorus helleri), platy (Xiphophorus maculatus) and molly (Poecilia sphenops), the guppy belongs to the family Poeciliidae — a group commonly known as the ...

Browse 190+ swordtail stock illustrations and vector graphics available royalty-free, or search for swordtail fish to find more great stock images and vector art. Collection of freshwater fishes ...