There are currently three species of freshwater angelfish in the Pterophyllum genus – P. altum, P. leopoldi, and P. scalare. The P. scalare is the most popular species that is kept as pets.

They are the aristocrats of the aquarium, mesmerizing hobbyists with their showy fins, the aquatic equivalent of a tiara and scepter. "The angelfish's appeal has to do with its spectacular finnage ...

A juvenile marine angelfish hybrid (Pomacanthus imperator x P. annularis) shows striking ... More intermediate colour patterns between its two parent species. (Credit: Yi-Kai Tea.) I’ve always ...

such specialized structures allow the animal to monopolize a single food type, angelfish have used this evolutionary breakthrough to expand into many niches on the reef. "These guys are sort of ...

A 17-year-old high school student in California has sequenced the genome of the freshwater angelfish (Pterophyllum scalare) for the first time. Indeever Madireddy sequenced the genome of his pet ...

Dennis King, 78, who loves being underwater because he feels at home, has a species of angel fish named after him. Its scientific name is Apolemichthy kingi, but it is commonly known as the tiger ...