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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 snow crab, aka queen crab or spider crab, dwells as far north as the Arctic Ocean and as far south as California. These crustaceans face the threats of overfishing and over harvesting, climate change, that causes warming ocean temperatures, a faster metabolism, and lack of available food. The parasitic […]

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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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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 bristlemouth, aka bristlefish or anglemouth, get their name from their sharp, bristle-like teeth. These are the most abundant fish in the ocean. However, they are rarely seen due to dwelling at depths of around 1,000 feet. They face the threats of climate change, that can cause deoxygenation (increased oxygen […]

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The Chinese mitten crab, aka Shanghai hairy crab, is a mid-sized burrowing species of crab that is named for their furry claws that look like mittens. They originally hail from rivers, estuaries, and other coastal habitats of east Asia; from Korea in the north to Fujian in the south. They […]

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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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The brown crab, aka edible crab, is found in the North Sea, North Atlantic Ocean, and possibly the Mediterranean Sea. These crabs face the threats of overfishing; diseases, including: pink crab disease, shell disease syndrome, and various viruses; cadmium poisoning, which renders them unsellable due to the poisonous meat; predation, […]

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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 red mangrove crab, as you would imagine, dwells in and among mangroves. They are ecologically important as they bury and consume leaf litter. These crustaceans are not currently evaluated by the IUCN, but still face the threats of habitat loss and destruction at the hands of residential and commercial […]

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