hi all you clever phD peeps, I'm finishing my second yr at uni (studying biology)and have almost no idea what i want to do after graduation. my tutor suggests a phD, its something i would love to achieve but dont really know anything about it. how long do they last? and do you REALLY need to WANT to do one to make it worth it? i clearly have no dream career in mind that a phD may help me get to... maybe i should set my sights on something entirely different..?