Adult killer whales give birth to a single baby (only once were twins recorded) about every 3-10 years. They start breeding at about 14-15 years of age (the youngest known was only 11).
I've seen Univision translate the term bachelor's degree to licenciado, so I think it's reasonable to assume that to be the best translation. There may be some differences in the named programs overseas, though.
The libra (Latin for scales / balance) is an ancient Roman unit of mass that was equivalent to approximately 328.9 grams. It was divided into 12 unciae (singular: uncia), or ounces. The libra is the origin of the abbreviation for pound, lb.