A transparent goldfish that reveals its inner organs has been developed by a joint research team of Mie University and Nagoya University in Japan.

Female scissortail sergants allow potential mates to fertilize a small batch off eggs and then monitor their parenting skills to decide if they are good enough to deserve a full clutch.

According to NBC News Channel, someone has placed a shark pup on top of a toilet in a public restroom in Beaufort, South Carolina.

The rare Gangetic dolphin (Platanista gangetica) has been declared National Aquatic Animal of India. A few days after the formal declaration, which took place at a National Ganga River Basic Authority meeting in New Delhi earlier this week, Bihar chief minister Nitish Kumar announced that he has directed state authorities to put a halt to dolphin hunting in the Ganga.

Larry, a 3-foot-long Tawny nurse shark (Nebrius ferrugineus) has been moved from his cramped dwellings in a Burbank pet store to the Birch Aquarium, a public aquarium and museum capable of offering him much more spacious accommodations. The Birch Aquarium is a part of the Scripps Institution of Oceanography in La Jolla, which in turn is part of the University of California in San Diego.

Two species of Asian mouse-deer have been observed utilizing a very interesting technique to get away from predators; they jump into the water and stay there until its safe to come up. By carefully swimming up to the surface to breathe now and then they can stay submerged for long periods of time.

One of the most controversial environmental issues of the past decade now seems to have been solved thanks to the consolidated efforts of one U.S. and one U.K. researcher.

In the late 1980s and early 1990s, researchers started getting reports of numerous deformed wild frogs and toads. Many of them missed a limb partly or completely, while others – even more strikingly – had extra legs or extra arms.

A team of U.S. scientists has documented the first transmission of the lethal phocine distemper virus from the Atlantic Ocean to a population of sea otters living along the coast of Alaska.

“Small fish may have small brains but they still have some surprising cognitive abilities”, says Dr Jeremy Kendal* from Durham University’s Anthropology Department.

A new study funded by the U.S. navy and the Office of Naval Research show that Beaked whales are at higher risk of developing decompression sickness since they live with extremely high levels of nitrogen in their blood and body tissues.

A new species of wrasse living off the Brazilian coast has been described by Osmar Luiz, Jr, Carlos Ferreira and Luiz Rocha. The new species has been named Halichoeres sazimai after Brazilian ichthyologist Ivan Sazima from Universidade Estadual de Campinas in São Paolo.

Brachypopomus gauderio is not the only electric knifefish recently described from South America, U.S. researchers John P. Sullivan* and Carl D. Hopkins** have described another member of the genus Brachyhypopomus and given it the name Brachyhypopomus bullocki.

Brazilian ichthyologists Julia Giora and Luiz Malabarba have described a new species of electric knifefish and named it Brachypopomus gauderio.

The European River Otter (Lutra lutra) which was once almost eradicated from British waters is beginning to make a come-back thanks to improved environmental care and the reintroduction of captive-bred specimens.

The 2009 whaling season has now started in the waters off Iceland.

Iceland and Norway are the only two countries that openly defy the international whaling moratorium; Japan is instead using a loop whole, claiming their whaling to be carried out for scientific purposes.