article_snippet: A giant semi-fossilised egg that is almost 100 times larger than a chicken's egg and still has the tiny skeleton of a bird inside is to go on sale for more than £50,000.
article_snippet: The egg, which belonged to a German biologist just one of 25 known to remain intact around the world - is going on sale .
article_snippet: Auctioneers Rob Michiels, who is selling a similar egg along with other items from Dr Caspers collection, said a similar egg appeared to be older than other eggs that have been sold recently.
article_snippet: This once comes from the collection of Dr Caspers and we have been asked to sell the collection of Dr Caspers by Dr Caspers children who thought the collection of Dr Caspers was a dinosaur egg. '
article_snippet: his children who thought it was a dinosaur egg didn't know a lot about his children who thought it was a dinosaur egg father's collection. '
article_snippet: and I spotted a similar egg.
article_snippet: a similar egg was just sat in a box. '
article_snippet: Another elephant bird egg was sold in 2013 for £66,675 - more than twice Another elephant bird egg expected value.
highlights_snippet: The egg, which belonged to a German biologist is expected to sell for more than £50,000 at an auction in Belgium .
  