Tag: ice worms

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Ice Crawlers and Ice-Worms

Ice Crawlers
Ice Crawler

As humans enjoy spring’s warmer weather, we are reminded of extremophiles that can only survive in the cold. They include ice crawlers and ice worms.

Ice crawlers (Grylloblatidae), also known as icebugs, are about an inch (3 cm) long. They are nocturnal, spend the daytime under snow, and then emerge at night to forage for dead insects and plant material blown by the wind. They live under logs and deep in crevasses in warmer weather to stay cold. Ice crawlers have no wings and only diminished eyes. Their optimal living temperature is 34-39 degrees F (1-4 C). Lower or much higher temperatures can kill them. They survive on glaciers and ice sheets.

Ice-worms (Mesenchytraeus), also called glacier worms, survive in glacial ice and eat algae and bacteria that live there. They spend their entire life cycle at 32 degrees F (0 C) or lower and will die if the temperature goes above that. These tiny worms move between the ice crystals using small bristles called setae.

Birds that live in high-altitude snow and ice fields feed on ice worms and ice crawlers.  Snow buntings stay in the ice fields year-round, and other birds stop there during migration in the spring and fall.

Many years ago, my daughters and I were on a snowmobile trip in Jasper Provincial Park, Canada. We gazed down into a crevasse and marveled at the beautiful blue color, free of any dirt lines. It was so pure that the ranger guiding us gave us a cup of melted glacial ice to drink. He said a biologist told the park service that the melted glacial ice was safer to drink than distilled water. I questioned that statement, but now we know that ice crawlers and worms do an incredible job of keeping the snow and ice pure. There were birds all around us during that visit, but it was years later before I learned that birds like snow buntings exist.

God’s design of every part of Earth’s biosphere has unique conditions, requiring living things to have special equipment to survive there. The more we see the Earth’s varied environments, the more we see God’s wisdom and creation around us.

— John N. Clayton © 2025

References: Wikipedia “Grylloblattidae” and “Ice Worm”

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Ice Worms and Ooligans

Ice Worms and Ooligans

The National Park Service website has a page on ice worms that live in the glaciers of the Pacific coast of North America. This reminds me of a children’s book by Charlsey Ford that we published in 2005. Charlsey worked with us for many years in our efforts to show that science and faith are symbiotic and not adversarial. Charlsey’s book Animals of the Cold was illustrated by John W. Davis III and Alyssa Cain. It shows that God has placed life, such as ice worms and ooligans, even in the most hostile locations on Earth.

Tiny ice worms live in colonies of thousands in a square meter of a glacier. According to the National Park Service, they are so well suited for the cold that they will “melt” at room temperature as their cells become liquified. Ice worms live in tunnels in the glacier ice and eat algae, bacteria, pollen, and dust that falls on the glacier. Ice worms produce soil that allows plants to grow in a desolate place. Birds such as the snow bunting feed on the worms. Being at the bottom of the food chain, ice worms provide the basis for life in glaciated areas.

The ooligan is another life form uniquely designed to live in very cold climates. Ooligans are sometimes called “candlefish” because they contain so much oil that if you dry the fish and light a wick in its mouth, it will burn like a candle. Native people in the Bering Sea area have used ooligans for centuries as food and medicine. Ice worms and ooligans are two of the beautifully designed organisms that allow life to exist in extreme environments.

Life on planet Earth fits well with the words of Romans 1:19-22 which tells us we can know there is a God through the things He has made. From deserts to dark, deep ocean habitats, we can see that a wonder-working hand has gone before.

— John N. Clayton © 2024

Reference: “Glacier Ice Worms” on the National Park Service website.

Note: Copies of Animals of the Cold are available for $2.00 to cover postage from the Does God Exist? Ministry, 1555 Echo Valley Drive, Niles, MI 49120, or you can purchase the entire set of Does God Exist? children’s books from the PowerVine.store website.

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Jonah’s Icefish and Animals of the Cold

Animals of the Cold include Jonah's Icefish and Ooligans

Deep-sea biologists from Germany accidentally discovered a massive colony of icefish nests under the ice in Antarctica’s Weddell Sea. The fish known as Jonah’s icefish have formed a colony the researchers estimate to contain 60 million nests 500 meters below the sea ice. The animals of the cold always amaze us.

Jonah’s icefish are nesting fish that carve out circular nests with rocky centers on the seafloor, where they lay over 1,000 eggs. Other ocean and freshwater fish species form nests, including bluegills that nest in the lakes of the midwestern United States. However, bluegill breeding colonies are limited to a few hundred individuals, not millions. Like bluegills that feed on small aquatic life and are food for larger fish, Jonah’s icefish play an essential role as food for the Weddell seals, and they feed on the abundant plankton in the Antarctic waters. 

When it comes to animals of the cold, Jonah’s icefish are like the ooligan (eulachon) fish of Alaskan waters in that their blood is full of antifreeze compounds. Ooligans have so much oil in their bodies that if you dry the fish and put a wick in its mouth, it will burn like a candle. In Alaska, a nickname for the ooligan is the “candlefish.”

Many animals are specially designed to live in very cold conditions. For example, one of the books in our children’s book collection is titled Animals of the Cold, written by Charlsey Ford. As well as the ooligan, that book discusses the musk ox, ice worms, and the Kermode bear. All of these animals are specially designed to live in the extreme cold. 

We see God’s design in every ecological system on our planet. Each time we find a new example, we are amazed at God’s creative design of life. Romans 1:19-22 reminds us that “We can know there is a God through the things He has made.” Jonah’s icefish is another excellent example of that truth. 

— John N. Clayton 2022

References: Science News February 12, 2022, pages 12-13, and Current Biology volume 32, issue 4.

The complete set of our children’s books is available HERE.