Why penguins are not afraid of the cold, and why are penguins not afraid of the cold

Why penguins aren't afraid of the cold Antarctica is the coldest place on Earth, and the lowest temperature here has been measured to be 0 2 C. The penguins that live here are covered with dense and thick feathers, and the tips of the feathers are curved, like tiles on the roof, and even water cannot penetrate them. There is also a dense pile of fluff underneath the layers of feathers, like the best quality woolen sweaters.

With such good feathers, the penguin is like wearing a thick down coat, and it is waterproof and insulated, and it is not afraid of the cold. At the same time, penguins have a thick body of fat, which can also play a role in heat preservation. Penguins have been baptized by tens of millions of years of ice and snow storms, and in order to keep out the cold, penguins have three layers of overlapping feathers on their bodies, which are closely scaly, which not only cannot soak the seawater, but also cannot be invaded by cold winds.

However, their feathers are often hard and short, and the tail feathers are long, which can be used as a support when standing! In addition, the subcutaneous fat layer of penguins is also extraordinarily thick, which is used to isolate the cold and low temperature outside the body, and has a good thermal insulation effect. Beg.

They have a thick body fat and are adapted to the environment, so they are not afraid of the cold.

Penguins are not afraid of cold because penguins have been tempered by tens of millions of years of snowstorms, and their feathers have become overlapping and densely connected scales. This special feather coat is not only difficult to penetrate by seawater, but the temperature is nearly 100 degrees Celsius below zero, and it is not easy to break through its thermal insulation defense. So penguins are not afraid of the cold.

Penguin feathers mostly have a good thermal insulation effect, which reduces the rate of heat loss in icy seawater. At the same time, some penguins can control blood flow to their limbs and have well-developed axillary veins that help warm blood flow back to the heart. In extremely cold conditions, penguins on land huddle together to keep warm, and they also move to change their position in the colony.

Each penguin has its own optimal temperature range, and when the temperature exceeds or falls below this range, their lives are affected.

Penguins: Mostly found in the Southern Hemisphere, with only one species found on the Galapagos Island near the equator, the Cana Island penguin. Due to the extremely narrow distribution area and difficulty in resisting the interference of external factors, five of the 18 penguin species are endangered: northern hopping penguins, warped penguins, yellow-eyed penguins, South African penguins and Canadian island penguins.

Not all penguins live in Antarctica, so there are obvious differences in the ability of different species of penguins to withstand the cold, and penguins living in the Antarctic continent and surrounding waters have better ability to withstand the cold.