Pandas can fake pregnancy.
Panda’s birth rates are extremely low, so caregivers usually treat it as a special occasion when a panda gets pregnant. They treat this panda with increased attention and give them more delicious food. Pandas have also been known to fake pregnancies to receive more attention and goodies from their caregivers. The fake pregnancy is not easy to tell from a real one from the start, as the animals show all signs of pregnancy, including the physical changes.
"Car on the right has the right-of-way" is true in the US as well - look it up - but the importation of a culture with no rules has badly eroded the observance of this standard.
#12 1000 a day or a year?
Some backward third world country still living in 1932 ?
A gallon is a part of a binary volume measurement system. It is very efficient (ask your computer, which spends way too much time converting to base-10). Volume is also correlated with the weight of water on Earth, "A pint (1/8 gallon [volume]) is a pound (16 ounces [force]) all the world round".
The French had a chance to make the Metric system similarly grounded in the world we live in, but they hated the English I guess so they decided to go with a less useful, arbitrary standard instead.