That's true since the colleges don't require philosophy except possibly an Ethics for dummies course, however, many scientists dig into philosophy when they are more mature and not working so hard on making their nut. Many of the best and most influential philosphers were scientists before. Kant was a physicist.
Is that how you can tell when senility sets in? ;-)
And in addition to being a world-class philosopher, Leibniz was also a world-class mathematician who independently developed the calculus.
The reverse is also true. It can be demonstrated that both Albert Einstein and Niels Bohr were students of philosophy, and their philosophical understandings deeply influenced their work as scientists.
I think what Coyoteman is describing when he says that no scientists today pay any attention to philosophy at all simply describes the situation of increasing deculturation that is advancing among many if not most Western intellectuals of our time. The education process is failing in its primary mission: To transmit the culture to the rising generation.