Food safety watchdog in Shanghai has launched a probe over the eggs that bounce like rubber hits the markets across China.

But food experts said the eggs were likely to be natural. Their unusual characteristics could be explained by high levels of a compound called gossypol.
When egg-laying hens eat gossypol-enriched feed, it binds to the protein in egg yolks.
Gossypol normally exists in the residue of cotton seeds added to chicken feed as an extra protein source.
Experts say large doses of the compound suppress sperm activity. Gossypol has been used in male contraceptive pills in a couple of countries.
Source-IANS