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The California golden trout has been the official freshwater state fish of California since 1947. They are closely related to 2 rainbow trout subspecies. These fish face the threats of hybridization and introgression which can cause genetic pollution due to interbreeding with other trout species. This has caused such a […]

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This article was originally published on Critter Science.

The cutthroat trout is actually a clade of 4 species of the family Salmonidae that are native to the cold-water tributaries of the Pacific Ocean, Rocky Mountains, and Great Basin in North America. They face the threats of habitat loss, destruction, and division at the hands of dams and waterway […]

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This article was originally published on Critter Science.

The brown bullhead, aka mud pout, horned pout, hornpout, or mud cat, can be found throughout most of North America. These catfish are regularly stocked in lakes meant for fishing all over Canada and the United States. They face the threats of habitat destruction, water pollution, overfishing, and habitat alteration, […]

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This article was originally published on Critter Science.

The iridescent shark, aka iridescent shark catfish, despite its primary common name, is not an actual shark, but a species of catfish. They dwell in the Mekong basin as well as the Chao Phraya River in southeastern Asia, and are heavily cultivated for food in that region. These fish face […]

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This article was originally published on Critter Science.

The African sharptooth catfish is a highly invasive species of air breathing catfish hailing from Africa. However, they have been introduced to Europe, Asia, South America, and North America. Often living in unsanitary conditions, they face the threats of parasites and disease from trematodes, nematodes, and cestodes. They also face […]

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This article was originally published on Critter Science.

The tiger muskellunge, aka tiger muskie, is the typically sterile, hybrid offspring of the true muskellunge and the northern pike. These fish can be found from eastern Canada to northeastern and midwestern United States. They face the threats of habitat division at the hands of dams and other water management […]

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This article was originally published on Critter Science.

The European sea sturgeon, aka Atlantic sturgeon or common sturgeon, were once abundant and found in coastal habitats all over Europe. Now they can only be seen in the Black Sea and Baltic Sea. They face the threats of habitat loss and destruction at the hands of mining and quarrying […]

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This article was originally published on Critter Science.

The Atlantic sturgeon is not only native to both sides of the Atlantic Ocean, but they are also associated with river basins as well. They are often considered a living fossil. These large fish face the threats of habitat loss and destruction at the hands of residential and commercial developments, […]

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This article was originally published on Critter Science.

The largehead hairtail, aka beltfish, Atlantic cutlassfish, Pacific cutlassfish, or Japanese cutlassfish, is a predatory elongated fish that can be found off the shores of every continent, sans Antarctica. They face the threats of overfishing; land pollution; water pollution, in the form of mercury poisoning; and microplastics pollution. However, they […]

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This article was originally published on Critter Science.

The painted stork gets its name from the distinctive pink tertial feathers found on adults. They are found in the wetlands of the plains of tropical Asia south of the Himalayas in the Indian Subcontinent and extending into Southeast Asia, and Australasia. These birds are subjected to the threats of […]

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