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Why Fish Don't FREEZE In Cold Water?

"Surviving the Cold: How Fish Thrive in Antarctica's Frigid Waters"

By vijideepakPublished 2 months ago 3 min read

Earth has given us the space to live, by providing us with a comfortable and stable environment, a diverse array of resources and the right conditions for life to evolve. but still there are several places on Earth where humans cannot live permanently due to harsh environmental conditions.

In this the Places such as the Arctic and Antarctic regions have extremely low temperatures, making it difficult for humans to survive without proper protection.

Have You Ever Wondered How Fish Live in That Extreme Condition Without Getting Freeze?

Deep Sea

We all know the water gets freeze at '0' degree Celsius but do anyone know the temperature of Antarctica? yes, sometimes it crosses '-40'degree Celsius, the oceans itself gets freeze due this extreme temperature.

Frozen sea in Antartica

If this is the condition every creature inside the sea die right?

Lucky this was not the situation there, but what's happening?

At one point ice stops forming itself, the proven science behind this is:

Let us do some experiment, drop the ice cube inside a glass of water, see what happens? it floats right, yes, Ice floats on normal water because the density of ice is less than the density of liquid water. When water freezes, the molecules form a crystalline structure that takes up more space than the same number of molecules in liquid form. This increase in volume causes the density of the ice to be less than that of liquid water. Additionally, the hydrogen bonds between the water molecules in ice are arranged in a more open structure than in liquid water, which also contributes to the lower density of ice.

Try the same experiment with OIL? Dop ice cube inside oil and comment what happens!

The ice forms inside the ocean constantly gets float on the top, and it acts as an insulation to control the weather, it takes much time to get freeze the inside water, and the living beings inside the water are safe.

Let us do one more experiment, take Frozen water in two glasses and wrap one with cotton cloth and another with woolen cloth, leave for some time and you can see the water in woolen wrapped glass, water melts little and in cotton cloth you can see more water gets melted out.

This is the reason we usually wear woolen cloths to make ourselves warm.

Also, fish in Antarctica do not freeze because they have antifreeze proteins in their blood and tissues. These proteins bind to small ice crystals that may form in their bodies, preventing the crystals from growing and causing damage to the cells. The proteins also lower the freezing point of the fish's blood, allowing it to remain liquid at subzero temperatures. Some species of fish in Antarctica also have a high concentration of glycolipids in their cell membranes which also helps to prevent freezing.

Additionally, some species of fish such as Antarctic Cod, have a unique ability to survive in freezing water by lowering the freezing point of their blood and other body fluids, they also can pump a glycoprotein (an antifreeze protein) that prevents the formation of ice crystals within their body.

Humans use same technique to survive in the extreme weather by building IGLOO's also some living beings makes small hole inside the snow to survive.

At the same time, we use same technique to control extreme heat under summer by using false ceiling and terracotta roof on top.

why we use false ceiling and terracotta tiles on the top of the roof?

False ceiling and terracotta tiles trap the extreme hot on the top and tries to maintain normal temperature inside our home.

False ceilings and terra cotta tiles are often used on the top of a roof for a variety of reasons.

False ceilings are used to conceal ductwork, electrical wiring, and other building infrastructure that may be unsightly or take up valuable headroom. They also help to improve the acoustics of a space by reducing the amount of echo and reverberation.

Terra cotta tiles are used as roofing material because they are durable, fire-resistant, and have a high insulation value. They can help to keep a building cool in hot weather and warm in cold weather, which can save energy and reduce heating and cooling costs. Terra cotta tiles are also relatively lightweight and easy to install, making them a popular choice for roofing.

Additionally, in areas with a high amount of rainfall and heavy monsoons, terra cotta tiles act as a barrier against water infiltration, protecting the roof and the building structure from damage.


About the Creator


I hope to inspire, inform, and entertain the readers, and to create a community of like-minded individuals who share his love of storytelling and the written word.

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