31. Unlike embryos, which survive for years in cold storage, unfertilized eggs are extremely fragile. 32. The preserved tissue contained unfertilized eggs. 33. Caspian caviar _ the sturgeon's unfertilized eggs _ are a lucrative but dwindling resource. 34. Parthenogenesis is a form of agamogenesis in which an unfertilized egg develops into a new individual. 35. After about a day, an unfertilized egg will disintegrate or dissolve in the fallopian tube. 36. In the UK, this is a species favouring unimproved ( and unfertilized ) chalk downland. 37. Needless to say it wasn't long before she laid an ( unfertilized ) egg. 38. Why do birds lay unfertilized eggs? 39. So maybe in a sense the unfertilized egg can be a decoy for the fertilized ones. 40. The mother fattens herself up on the leftovers, storing nutrients in unfertilized eggs in her ovaries.