31. These rocks belong to late cretaceous and early iocine period 32. The gestation period in females varies from 11 to 12 months . 33. Later the Islamic imperial succession period began. 34. In she-buffaloes , the heat period recurs every 21 to 23 days . 35. Well, who was inspired during that time period? 36. And in a period of three months she came to a conclusion 37. What we did was expose American babies during this period 38. The duration of the heat period varies from 12 to 24 hours . 39. New models that extend long periods of time are hard. 40. In that four-year time period, we invented the concepts
