If you've ever charted your ovulation to find the perfect time to
try "competent mating" you know how nerve-wracking it can be to figure
out how all the signs add up.
Imagine being a hopeful panda mom.
Pandas are believed to ovulate only once a year, leading to one
single day our roughly 365 on which they might conceive. After trying to mate for most of last Thursday,
the panda couple at the National Zoo were put to sleep so the zoo
keepers could help nature along by taking semen directly from male
panda, Tian Tian and inserting it directly into female panda, Mei
Xiang's uterus.
Now the two-week wait! But, wait. For a panda, that wait is
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