From the Greek: “morph,” meaning “shape,” and “metron,” meaning “measurement.” Schools of morphometrics are characterized by what aspects of biological “form” they are concerned with, what they choose to measure, and what kinds of biostatistical questions they ask of the measurements once they are made. The methods of this page emphasizes configurations of landmarks from whole organs or organisms analyzed by appropriately invariant biometric methods (covariances of taxon, size, cause or effect with position in Kendall’s shape space) in order to answer biological questions. Another sort of morphometrics studies tissue sections, measures the densities of points and curves, and uses these patterns to answer questions about the random processes that may be controlling the placement of cellular structures. A third, the method of “allometry,” measures sizes of separate organs and asks questions about their correlations with each other and with measures of total size. There are many others. This page mostly focus on landmark based and outline based geometric morphometrics. If you are a new beginner “morphometter” please click the left button, if you already know the basic principles and able to use softwares please continue with the advanced button. Please do not hesitate to contact with me anytime.