The examples are from sports physiology, but any biologist will appreciate the clear illustrated explanations. The Study of Stability in Variation . It has a mathematical approach that some biologists will appreciate, but others will find baffling. This is a text for a graduate course in a psychology dept, so don't expect biological examples or approach. Each chapter also contains extensive links to other resources.
Statistics is presented as a bunch of nuggets.
This makes the book impossible to read as a text, but quite useful as a reference. Introduction to Probability by Charles M. Grinstead and J. Laurie Snell, Dartmouth College. Available as pdf files to download. DG Altman Practical Statistics for Medical Research Lots of clinical examples. Clear nonmathematical explanations.