This booklet presents 20 species of mammals that live in the region around lake Stymphalia. These are mainly nocturnal animals, active at nighttime, for the most part bats. These mammals rely essentially on their sense of smell and only in a secondary capacity on their vision, with the exceptions of bats, which have a special sense of location using ultrasounds. The carnivorous mammals that are present comprise the fox, the beech marten, the badger, the otter, and the jackal, which had almost disappeared from the local fauna; the wild boar, extinct due to overenthusiastic hunting, was recently successfully re-introduced into the region.
The book is also available in Greek.
