Humongous extinct bird egg up for auction. Where did it come from?

The fine arts auction house Christie's is auctioning off a huge, partly fossilized egg laid by an elephant bird, an extinct creature native to Madagascar. The starting price: $45,000.

|
Matt Dunham/AP
Christie's scientific specialist James Hyslop poses for photographs with a sub-fossilized pre-17th century Elephant Bird egg at the auction house's premises in London. The extinct Elephant Bird species was native to Madagascar and among the heaviest known birds.

Larger than a rugby ball and several hundred years old, a giant, partly fossilized egg laid by an extinct bird is set to be auctioned by Christie's. The auction house expects the egg to fetch up to $45,000.

James Hyslop, the Christie's scientific specialist shown in the Magritte-esque photo above, told the BBC that the type of egg is "the largest egg ever laid by any animal."

The egg is "bigger than dinosaur eggs," said Hyslop.

Of course, phylogenetically speaking, birds are dinosaurs, a fact that is easier to believe when you consider the creature that dropped this particular ovum, the elephant bird.

The elephant bird, if you haven't guessed by its name and the size of the egg, was big. Bigger, in fact, than the biggest living bird, the African ostrich. Like the African ostrich, the elephant bird was flightless and from Africa – Madagascar to be exact. But unlike the African ostrich, it stood over 10 feet tall and weighed up to 800 lbs. In short, it's not the sort of creature you'd like to meet in a dark alley, unless you happen to be a paleoornithologist with a tranquilizer rifle.

Elephant birds, a term that comprises up to four species, were common on Madagascar through the 17th century. They are thought to have been driven out of existence by humans, either directly through hunting or indirectly through diseases carried by poultry brought to the island.

How did the elephant bird get so big? It's an example of island gigantism, a phenomenon by which animals on islands tend to evolve to be much larger than their mainland counterparts. Island gigantism often occurs when islands make poor habitats for large predatory mammals, either because they offer limited ranges or because the mammals can't cross the water to get there in the first place. In the absence of such predators, other animals can evolve to fill their niches. Either that, or the lack of predators allow them to grow larger, because there is no need to hide or escape. But when humans arrive on an island, its giants tend to go extinct.  

Examples of island gigantism can be found with Komodo dragons, Galapagos tortoises, and the Flores giant rat.  

In 1894, the science fiction author H.G. Wells published a short story about a man who discovers an ancient elephant bird egg, which subsequently hatches.

You've read  of  free articles. Subscribe to continue.
Real news can be honest, hopeful, credible, constructive.
What is the Monitor difference? Tackling the tough headlines – with humanity. Listening to sources – with respect. Seeing the story that others are missing by reporting what so often gets overlooked: the values that connect us. That’s Monitor reporting – news that changes how you see the world.

Dear Reader,

About a year ago, I happened upon this statement about the Monitor in the Harvard Business Review – under the charming heading of “do things that don’t interest you”:

“Many things that end up” being meaningful, writes social scientist Joseph Grenny, “have come from conference workshops, articles, or online videos that began as a chore and ended with an insight. My work in Kenya, for example, was heavily influenced by a Christian Science Monitor article I had forced myself to read 10 years earlier. Sometimes, we call things ‘boring’ simply because they lie outside the box we are currently in.”

If you were to come up with a punchline to a joke about the Monitor, that would probably be it. We’re seen as being global, fair, insightful, and perhaps a bit too earnest. We’re the bran muffin of journalism.

But you know what? We change lives. And I’m going to argue that we change lives precisely because we force open that too-small box that most human beings think they live in.

The Monitor is a peculiar little publication that’s hard for the world to figure out. We’re run by a church, but we’re not only for church members and we’re not about converting people. We’re known as being fair even as the world becomes as polarized as at any time since the newspaper’s founding in 1908.

We have a mission beyond circulation, we want to bridge divides. We’re about kicking down the door of thought everywhere and saying, “You are bigger and more capable than you realize. And we can prove it.”

If you’re looking for bran muffin journalism, you can subscribe to the Monitor for $15. You’ll get the Monitor Weekly magazine, the Monitor Daily email, and unlimited access to CSMonitor.com.

QR Code to Humongous extinct bird egg up for auction. Where did it come from?
Read this article in
https://www.csmonitor.com/Science/2013/0328/Humongous-extinct-bird-egg-up-for-auction.-Where-did-it-come-from
QR Code to Subscription page
Start your subscription today
https://www.csmonitor.com/subscribe