A team of zoologists, led by Yuesong Gao of the University of Science and Technology of China, found evidence of what would be two major extinctions of Adelaide penguins, which occurred about 750 and 200 years ago.
The results of this research were published in the Journal of Geophysical Research and indicate that on the coast of Antarctica were found about a hundred mummies of this type of birds, which were hidden under a thick layer of snow.
According to experts, the explanation for this event is that heavy precipitation and climatic conditions forced the animals to abandon their numerous sub-colonies. And in this area zoologists discovered abandoned colonies, as well as the remains of the birds.
As part of the analysis to verify what happened in this massive extinction, scientists conducted radiocarbon studies on the remains. The researchers concluded that extreme climatic anomalies were the main reason for this event.
The specialists point out that a clear example of what could have happened is what has happened in recent decades, where they have observed, repeatedly, an increase in snowfall in Antarctica or the melting of snow. These can cause hypothermia and, as a consequence, a low survival of the offspring.