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The red worm, aka red earthworm, red wiggler, or rainbow worm, can be found on every continent, sans Antarctica. They prefer soil that is high in organic content, preferably containing feces (poop). Due to their global presence and abundant nature, these critters are not currently listed by the IUCN. First […]

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This article was originally published on Critter Science.

The bristle worm, aka bristleworm or polychaete, can be found in primarily saltwater environments, but can also be found in brackish (mildly salty) and even freshwater habitats. Bristle worms exist the world over. Some are even venomous. Due to the abundant and almost invasive nature of some of these creatures […]

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This article was originally published on Critter Science.

The planarian, aka flatworm, can be found in freshwater, marine, and terrestrial environments. They need either a moist, humid, or watery environment in order to survive. Take that away and they die. Not only do they live all over the world, but they’re also found in laboratories, as they’re used […]

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This article was originally published on Critter Science.

The sea pig is a type of sea cucumber. They can be found in oceans all over the world. But good luck finding 1 of these critters. They dwell on the ocean floor, at depths of up to 16,000 feet. These echinoderms are difficult to study since they live at […]

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This article was originally published on Critter Science.

The hammerhead worm is a force to be reckoned with. They’re hunters, they’re highly toxic, and they’re coming for an earthworm near you! There are 160 known species of hammerhead worms, to date. Each as fierce as the next. They can be found throughout the world, sans Antarctica, and are […]

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This article was originally published on Critter Science.

With a world full of parasites, the tapeworm is certainly 1 of the most feared & loathed of them all. Humans and animals can be hosts to tapeworms. These creatures come with a host of falsehoods and misconceptions alike. But one thing is certain, you definitely don’t want to be […]

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This article was originally published on Critter Science.

The bobbit worm, aka sand striker, is a study in how terrifying nature can be. These creatures can be found primarily in the Atlantic Ocean, but can also be found in the Indo-Pacific. These predators, aka nightmare fuel, lay in wait for passing prey to happen by. Then they attack, […]

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This article was originally published on Critter Science.

The earthworm is an invertebrate (lacks a backbone) and even though you might not think they’re animals, they are. There are 2,700 known species of earthworms, to date. They belong to a classification of critters called echinoderms. These simple yet complex creatures spend most of their time burrowing in the […]

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This article was originally published on Critter Science.

Changing very little in the last 500 million years, the velvet worm is a peculiar predator with 180 species described to date. These odd creatures spend their time in the tropics, in Australia and in New Zealand. They are among the most rare of all rainforest animals. These critters may […]

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This article was originally published on Critter Science.

The giant Gippsland earthworm can only be found in the clay heavy soil along streams in Victoria, Australia. These giants are so elusive that they were only discovered in the late 1800s. They are isolated to just 150 square miles along the southeast tip of Australia. Their habitat was once […]

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