（科伦坡20日综合电）斯里兰卡一只母鸡没用孵蛋方式，直接生出一只小鸡，在当地引起轰动。一般母鸡生小鸡，都是先下蛋，在体外孵化，但是这只蛋却留在母鸡体内21天，最后在体内孵化。
小鸡生下来后身体健全，一切正常，但是鸡妈妈却没活下来。当地政府兽医说，他从没见过这种事情。兽医检查了母鸡尸体，发现受精了的蛋在母鸡生殖系统内发育，但直到孵出来时一直都留在母体内。
斯里兰卡《每日镜报》调侃道：对于先有鸡还是先有蛋这个古老问题，现在这件事给出的答案再明确不过了，当然是先有鸡，后有蛋啦！
A Sri Lanka hen has given birth to a chick without an egg, in a new twist on the age-old question of whether the chicken or the egg came first.
Instead of passing out of the hen’s body and being incubated outside, the egg was incubated in the hen for 21 days and then hatched inside the hen.
The chick is fully formed and healthy, although the mother has died.
The government veterinary officer in the area said he had never seen anything like it before.
PR Yapa, the chief veterinary officer of Welimada, where it took place, examined the hen’s carcass.
He found that the fertilised egg had developed within the hen’s reproductive system, but stayed inside the hen’s body until it hatched.
A post-mortem conducted on the hen’s body concluded that it died of internal wounds.
The BBC’s Charles Haviland in Colombo says that the story has made headlines in Sri Lanka, with the Sri Lankan Daily Mirror’s concluding: "The chicken came first; not the egg."
source: http://cforum.cari.com.my/viewthread.php?tid=2756843&extra=page%3D2
bbc.co.uk
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