Critter Science

The California Golden Trout

11 June, 2026
Critterman
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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

The Iridescent Shark

14 April, 2026
Critterman
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Daily Critter Facts, Fish Facts

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

The Guiana Dolphin

17 February, 2026
Critterman
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Daily Critter Facts, Dolphin Facts, Sea Mammal Facts

The Guiana dolphin, aka estuarine dolphin or costero, hails from the coastal & estuary waters to the north & east of South America, and east of Central America. These dolphins face the threats of

The European Sea Sturgeon

2 February, 2026
Critterman
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Daily Critter Facts, Fish Facts

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

The Atlantic Sturgeon

16 January, 2026
Critterman
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Daily Critter Facts, Fish Facts

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

The Tiny Ostracod

4 September, 2025
Critterman
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Arthropod Facts, Crustacean Facts, Daily Critter Facts, Fish Facts

The ostracod, aka ostracode or seed shrimps, are small crustaceans that are usually only 0.0079 inch, but can be up to 1.3 inches. They have a bivalve-like valve, aka “shell”, made of chitin, and many times calcium carbonate

The Eiselt’s Caecilian

11 April, 2025
Critterman
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Amphibian Facts, Daily Critter Facts

The Eiselt’s caecilian is a type of caecilian that hails from Brazil and possibly Bolivia. These unique and fascinating creatures are amphibians. They prefer to dwell in warm, turbid, fast-flowing waters within the lowland Brazilian Amazon basin, primarily in the Madeira River

The Longcomb Sawfish

6 November, 2024
Critterman
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Daily Critter Facts, Fish Facts, Shark and Ray Facts

The longcomb sawfish, aka narrowsnout sawfish or green sawfish, can be found in the tropical and subtropical coastlines of Africa, Middle East, south Asia, Australasia, and Australia. Due to habitat loss at the hands of

The Beluga Sturgeon

13 September, 2024
Critterman
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Daily Critter Facts, Fish Facts

The beluga sturgeon, aka great sturgeon, dwells in the Caspian and Black Sea basins, and previously in the Adriatic Sea. They are the 3rd largest species of bony fish, with the Mola mola – ocean sunfish being number 1 at 10.8 feet and

The Karpathos Frog

31 January, 2024
Critterman
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Amphibian Facts, Daily Critter Facts, Frog Facts

The Karpathos frog belongs to the Ranidae (true frog) family. They can only be found on the island of Karpathos, in the South Aegean Sea, in Greece. They prefer rivers, intermittent rivers, freshwater lakes, intermittent