Bird with two sexes? RARE find challenges Biology

Amidst the vibrant spectacle of fauna, a bird stands out as a masterpiece of nature: the stunning green tanager (Chlorophanes spiza).

This exotic inhabitant of the rainforests of Central and South America dazzles birdwatchers with its rich, colorful plumage.

Male and female are very different

The male, a true symphony of colors, displays a resplendent blue color, adorned by shiny feathers that crown his body almost completely.

On the other hand, the female has feathers in green tones. The beauty of green leaf transcends its mere aesthetic function, reflecting a complex dance of pigments that nature masterfully composes.

A bird that is male and female?

But what if, through a quirk of genetics, nature decided to create an even more extraordinary variation?

In a very rare find, an unprecedented event recently occurred in the Don Miguel Demonstrative Natural Reserve, near the Colombian city of Caldas.

It was there that the passionate amateur ornithologist John Murillo recorded a Green Tanager that defies the biological conventions.

This rare specimen revealed an extraordinary secret: half of its body displayed the striking characteristics of a male, while the other half displayed the typical delicacy of females.

Scientific explanation

The explanation for this phenomenon lies in the intricate dance of chromosomes. In extremely rare cases, during the process of meiosis, which culminates in the formation of sperm and eggs, a genetic slip occurs.

Two sperm fertilize a single egg, resulting in this remarkable being that carries with it the duality of sexes.

Given the impossibility of capturing the creature for more detailed examinations, the mystery about its internal anatomy remains.

In similar specimens, in which sexual ambiguity is evident, analyzes have revealed the presence of ovaries and testes distributed on each side of the body, adding a surprising element to the biological complexity of these unique birds.

This visually stunning encounter between green and blue, masculine and feminine, is a testament to the complexity and unpredictability of nature.

Each wingbeat of the Green Tanager, which has two colors and two sexes, tells the unique story of a rare and fascinating phenomenon.

As ornithologists and enthusiasts explore the corners of biodiversity, the green tanager stands out not only as a living jewel, but as a reminder that, even amid apparent order, nature holds surprises that challenge our understanding and enrich our fascination with the winged kingdom.

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