Many of the complete eggs have a hole in them which could be because natives used them in the past for water containers although this is not for sure. This egg also had a small hole which is professionally closed for optical reasons. With UV light it is recognizable as it doesn't show the green reflections. Picture with UV light included.
*David Attenborough had a part of his egg tested at Oxfort University via carbon dating and his shell came out to be around 1,300 years old. In the Youtube video the researcher is also mentioning that from all the egg shells from the Aepyornis maximus they have tested came out much older. He believes, based on the data collected, that these birds were largely extinct around 1,000 AD.
There are only a few dozen complete eggs in the world!
Scientific name of the Elephant bird is Aepyornis maximus. The Aepyornis is an extinct giant flightless bird that roamed the island of Madagascar that could reach up to 3 meters in height and weigh over 500 kg.
This egg is large enough to contain 7 ostrich eggs, 1280 chicken eggs, or 12,000 hummingbird eggs.
The picture with the 3 eggs are from an ostrich and a chicken.