In an article published on January 15, 2017, Nature magazine called the peacock “one of the world’s best bird species for keeping cool”.

In a follow-up article in February, the magazine highlighted the fact that the peacocks’ feathers are not only a great insulator, but also a “natural warmth source” and a great source of oxygen.

Now, an international team of researchers has uncovered a new study that indicates that these birds actually have some important evolutionary advantages over other warm-weather birds, such as the peacake.

They discovered that the birds have a large number of feathers and can use them for insulation.

The scientists also found that peacocks have evolved adaptations to their plumage, which allow them to keep warm when the weather is cold.

“The idea that peacock feather production was once thought to be a survival feature in this species is a major breakthrough,” lead author Maria Cristina Pascual, of the University of Cambridge in the UK, said in a statement.

“For the first time we have found evidence of a functional adaptation in peacocks for storing heat.”

“What we have seen is a fascinating evolution, where peacocks appear to have been able to use a plumage to keep their bodies warm during the coldest months of the year.”

The research team used an innovative method to study the plumage of two species of peacocks and found that they have the same number of small, thin, thin-toed feathers that birds use for insulation, Pascually said.

They also found a unique pattern on the feathers that indicates which peacock species produces the plumages.

“If you look at the plumogram, you can see a very distinctive pattern, where the shape is very symmetrical and the feathers are parallel,” she said.

The researchers found that the plumings of the two species are similar in size and shape, which helps them to stay warm during their wintering seasons. “

So this indicates that there’s some kind of adaptive advantage for this species in keeping warm during cold months.”

The researchers found that the plumings of the two species are similar in size and shape, which helps them to stay warm during their wintering seasons.

However, the feathers of the peacak species, which are called “parrots” in Spanish, look like small, curved, flattened, and sometimes flattened, wings.

This suggests that these feathers are a “special adaptation” to their habitat, and that they are not needed for their function as a warm-air insulator.

The research also showed that these bird feathers also have a “superior” thermal response compared to other birds, which means that the feathers keep the birds warm during winter months when temperatures drop to about -30°C (-38°F).

This is because they can maintain their body temperature at a higher rate than other birds.

“It means that peacocking feathers actually can act as a very efficient thermal insulator,” Pascua said.

The peacocks also have an unusual pattern on their feathers that helps them maintain their shape and provide warmth during their long wintering season.

The researchers also found evidence that peacocked feathers do not retain moisture in their feathers when they are wet, suggesting that they may help maintain their feathers’ natural heat-retention properties during wet months.

The findings of the study have been published in the journal Scientific Reports.

This article originally appeared on New Scientist.