A cow mysteriously delivered an "egg" recently in Qinhuangdao of Heibei Province.
The 1-year-old cow was found to have delivered what seemed to be a black egg early one morning last week. The strange "egg" has the same shape of a real egg but a bit larger.
The owner said that the cow ate much more since it delivered the "egg."
Animal experts have been curious over the "egg" and have begun researching it.