The year 2010 has been declared as the International Year of Biodiversity. The aim of the present paper is not simply the presentation of species lists, present in the area of Tzoumerka. Our goal is to highlight hidden aspects of the life of otherwise common species, thus establishing their uniqueness and value. Our hope is that, by revealing the unknown behaviors of these creatures, we can pique the readers’ curiosity and make them appreciate the diversity of life. Many things happen without realizing them. Into the trees, at the riverbanks, on and below the ground, the expressions of life are surprising. The various creatures call us to identify our common characteristics.