The term navicular bone tends to refer to a bone at the top of the foot, located in close proximity to where foot and ankle meet. While most people will now accept this as the location of the bone, a bone in the wrist, most often called the scaphoid bone, used to be called the navicular too.
24 hours is the usual life span of the ovum. That's why it is important to have intercourse in the days just before you ovulate. Sperm should be waiting inside the fallopian tube when the egg is released to increase the odds of getting pregnant.The days just before ovulation are your most fertile days to conceive.4 hours is the usual life span of the ovum. That's why it is important to have intercourse in the days just before you ovulate. Sperm should be waiting inside the fallopian tube when the egg is released to increase the odds of getting pregnant.
(The lengthy pregnancy is thought to slow ageing in order to push the average life-span to 65 years). Following a long gap of up to 45 days between ovulation and implantation, the authors maintain that the yellow bodies are used to keep up the uterine wall for 22 months. The Proboscid group of the elephants is related to the Sirenia (manatee and dugong) and they have been found with multiple CLs too.