From Comet to Fantail, here is a one-stop guide to the five most popular varieties of Goldfish admired worldwide.

Choosing long‑lived fish can turn an aquarium into a long-term companion rather than a short‑lived hobby. Lifespan depends on ...

Researchers report the sequence of the goldfish genome and identify regions subjected to selection during 1,000 years of breeding. Considered the same species as crucian carp, modern goldfish have ...