Dr. Witold Zakowski, Researcher/lecturer/animal welfare officer; employed in the Neurophysiology and Neurochemistry Lab (Department of Animal and Human Physiology, Faculty of Biology, University of Gdansk); areas of scientific interest: 1. contribution of various brain structures to memory, with a special focus on the mammillary body and anterior thalamic nuclei, 2. importance of animal interactions for memory acquisition, 3. neurochemical profile and number of neurons in the developing central nervous system, 4. use of animal in scientific research.