The huge growth in knowledge in many areas of biological sciences over the past few decades has created a major dilemma for those of us in higher education, for not only must we adequately and efficiently convey these new facts and concepts to our students, we must also ensure that they understand and appreciate them.The field of developmental biology has witnessed such a massive growth in knowledge since the mid-1980s, driven mainly by advances in cell and molecular biology, and the development of new imaging techniques and tools. Ensuring that students fully appreciate the four-dimensional nature of embryonic development and morphogenesis is a particular issue, and one that I argue can only be properly learned via direct exposure to embryos via laboratory practicals.