These are large research institutions, and a lot of these very big gifts go toward supplying infrastructure for, and paying for things like, medical research.

In the short run, it's more efficient to raise a small number of large gifts.

Our research adds to the growing body of evidence that cardiovascular health after menopause is influenced by hormone levels many years earlier. Our monkey studies showed that a deficiency of estrogen before menopause places these females on a high-risk trajectory, even if they got estrogen treatment after menopause.

One of the reasons for Princeton's lower rank could be that it is a smaller school. Plus, it raises a disproportionate amount from alumni as opposed to other institutions with large corporate donations.

Harvard and Stanford are always close to the top.

Look around. You won't see any Rolls-Royces pulling up in front.