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Why fish don't freeze in winter?
because the ice on top of the water has little atoms stick to each other and sir gets grapes in side between the atoms which makes ice flot on top of the water and that prevents the water from freezing and also the water below is moving in rivers and oceans
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Fish go further down than the ice. The ice usually doesn't freeze all the way to the bottom. If the fish are trapped in shallow water or if the lake or stream freezes to t…he bottom, they will freeze.
Birds actually use several tricks to keep their legs from freezing. First they can stand on one leg and pull the other up under their feathers when one leg starts getting too …cold. And if it gets really cold, they can squat to cover both legs with breast feathers. If you see a bird doing this, they may be getting uncomfortably cold legs.Also birds’ feet are mostly bone and tendons, so unlike mammals, they have a limited supply of nerves, blood vessels or muscles to freeze. Their feet are also covered with scales which isn’t a living tissue and less susceptible to freezing.Finally, birds don’t have sweat glands in their skin to produce any moisture to freeze. Heat and moisture are accumulated in sacs, transferred to the lungs and eliminated through the mouth. No moisture escaping through their feet is also the reason they don’t stick to metal perches in the winter.
They have feathers to keep them warm and their nests aresurprisingly warm some birds even migrate to warmer countries forthe winter
During the Winter, squirrels hibernate. By hibernating, the squirrels lower their heart rate and are immune to the cold. Before hibernation, they stock up on food for the Wint…er.
To answer this question, you have to account for many variables. Excluding morphology of the lake and generalizing behavior (as well as species of fish) it is possible for fis…h to die during a freeze. Still, there are many mechanisms that allow for fish to survive these common events. Most fish adjust behaviors, by vertically migrating to allow for the change in temperature or they may migrate from the lake. Other species produce anti-freeze proteins which alter the physiology of the fish. If you need a more in-depth answer, just message me.
The oceans are saline or salt water. This affects the temperature at which they freeze. Plain water freezes at about 0°C at sea level, but saline, at the concentrations norma…lly found in the ocean, freezes at close to -2°C. Pressure also affect freezing temperature. The deep ocean is at great pressure, so even though it can be at temperatures of -3°C it does not freeze. The temperature of the surface of the ocean varies from about -2°C to about 34°C depending on currents and latitude. Much of the surface of the Arctic ocean is frozen all year round, but the extent varies during summer and winter. An area of the sea around Antarctica also forms sea ice in winter each year, but much less area is permanently frozen than in the Arctic.
A dogs nose does not freeze in the winter because it contains a blood flow. It may not also freeze because there is warm air that goes in and out of it at all times.
Rivers don't freeze in the winter because the water keeps moving and doesn't freeze.
As a deer farmer, I was wondering the same question. I have found that their think fur and hide is enough to keep them warm, eventhough they have skinny legs.
due to the anomalous expansion of water
I was learning in my science class in grade 8 that the bottom of the sea bed is warm while the top of the ocean is freezing cold. You could still die if you go to the bottom o…f the ocean, but the temperature dops its coldness a bit so that the fishes can breed. And polar bears arn't friggen fish!
the whole water doesn't freeze (if it's not one of the poles) and fish can survive under that ice in the water because they are immune to really low temperatures.
Antarctica is a continent. In Antarctic waters, which are liquid, the fish survive there because it's their natural habitat. When the sea ice freezes, the fish simply migrate… so that they remain in liquid.
While squirrels may sleep in a protected area such as a hole in a tree, I'm not aware that they hibernate. I live in Northern MN and we have had overnight temps in the -23 to …-28 range the last few nights this January and the squirrels are right back under the feeders the next day. As long as there is food around, I will see squirrels daily!
The Southern Ocean is liquid under its frozen top, and these animals are adapted to the extreme cold, some with versions of anti-freeze in their systems.
In Animal Life
White-tailed deer adjust their metabolic rate, home range, and food supply in the winter. During the longer summer days, deer have a higher metabolic rate to take advan…tage of higher quality and more abundant food supplies. During the shorter days of winter, they lower their metabolic rate and reduce their body temperature. They survive on lower quality food such as white cedar and mountain maple twigs. They need to eat 6-8 pounds of this reduced nutrition food. Deer also reduce their home range in winter. They often stay in the shelter of a conifer grove, especially at night. Studies have shown that night temperatures in these groves are up to 60 degrees warmer than out in the open. A deer's heavier winter coat, with its hollow hairs, also provides needed insulation against the cold. Deer also match their reproductive cycle to the change in the seasons. They mate in fall. During the early part of their pregnancy, which occurs during the worst of the winter, the fetus develops very slowly and requires very little from the female. During the last trimester, the spring thaw provides more and higher quality browse for the mother such as aspen, willow, and birch. The fetus then grows rapidly and is born after the snow melts.
When a pond freezes, the ice floats on top of the liquid water underneath. This allows fish to survive beneath the ice during the winter. The ice also acts as a layer of insul…ation, keeping the water above freezing.