For decades, scientists were baffled by why thorny skates in the North Atlantic came in two distinct sizes. Despite extensive ...

There’s no need for a huge aquarium for these beautiful fish.From garden ponds filled with Koi Carp to the humble goldfish ...

The research has revealed how male Hilsa undergo sex reversal to become ... The overall research results suggest that Hilsa fish complete their first year of reproduction as males and then migrate ...

Well, at least for mosquitofish—a matchstick-sized fish endemic to Central America ... According to the ANU scientists, male mosquitofish possess impressive problem-solving skills and can ...

Guppy Multi Colored Fish in a Tropical Acquarium. Image via Depositphotos. The vibrant world of aquatic life is often exemplified by the dazzling courtship rituals of male guppies. These small, ...

These major differences are key elements to differentiating these fish when they’re young. However, they’re not the only factors we’re going to examine. Let’s look at all five key differences between ...

ORNAMENTAL fish breeder, Thum Chee Seng, 50, won the Pearl of Orient Cup challenge trophy during the International Guppy Competition in Penang. His pair of guppies, commonly known as longkang ...

If you have your heart set on a certain species, you will need to know if that fish can even live with a member of its own species or a conspecific of the same sex. Guppy owners are told to maintain a ...

There is only a weak link between brain structure and behavioral variations, with this weak relationship largely explained by brain size, because male brains on average are 10 to 15 percent larger ...