Biologists from the University of North Carolina at Wilmington (USA) carried out radiocarbon analysis of the remains of penguins from Cape Irizar in Antarctica and were surprised to find that their age is at least 800 years. The remains look almost fresh, but in fact they turned out to be very old - some samples are even about 5, 000 years old. The reason for this, of course, is ice - it acted as a freezer in which biological samples were preserved.
Cape Irizar has never been reported as habitat for penguins by scientists, and there has been no record of this since observations began in the 1900s. The reason is obvious - penguins need pebbles to build nests, they have nothing to do on fast ice, an ice-covered stretch of coast. However, today Cape Irizar, thanks to the extensive melting of ice in the region, is once again free from the cold shackles, and the pebbles hidden under the ice, and with it the remains of ancient penguins, appeared outside.
In Antarctica, both today and centuries ago, there are not so many areas with pebbles, so penguins appreciate them and do not miss the opportunity to settle. The remains of birds of different ages at Cape Irizar indicate that for centuries it was a very convenient place for a camp. However, then the coast was chained by ice and the penguins left, but there is every chance that now they will return. The ancient camp will come to life again - scientists believe that Cape Irizar in the past experienced many waves of desolation and revival of penguin populations.