story of how the trickster Nart Sosruquo, became invulnerable parallels that of the Greek hero Achilles. The ancient Greek Amazons may be connected to a Caucasian "warrior Forest-Mother, Amaz-an". Caucasian legends include stories involving giants similar to Homer's Polyphemus story. In these stories, the giant is almost always a shepherd, and he is variously a one-eyed rock-throwing cannibal, who lives in a cave (the exit of which is often blocked by a stone), kills the hero's companions, is blinded by a hot stake, and whose flock of animals is stolen by the hero and his men, all motifs which (along with still others) are also found in the Polyphemus story. In one example from Georgia, two brothers, who are being held prisoner by a giant one-eyed shepherd called "One-eye", take a spit, heat it up, stab it into the giant's eye, and escape. There are also links with the ancient Greek myth of Prometheus. Many legends, widespread in the Caucasus, contain motifs shared with the Prometheus story. These motifs include: a giant hero, his conflict with God or gods, the stealing of fire and giving it to men, being chained, and being tormented by a bird who pecks at his liver (or heart). The Adyge/Circassian Nart Nasran, the Georgian Amirani, the Chechen Pkharmat, and the Abkhazian Abrskil, are examples of such Prometheus-like figures. Ecology The Caucasus is an area of great ecological importance. The region is included in the list of 34 world biodiversity hotspots. It harbors some 6400 species of higher plants, 1600 of which are endemic to the region. Its wildlife includes Persian leopards, brown bears, wolves, bison, marals, golden eagles and hooded crows. Among invertebrates, some 1000 spider species are recorded in the Caucasus. Most of arthropod biodiversity is concentrated on Great and Lesser Caucasus ranges. The region has a high level of endemism and a number of relict animals and plants, the fact reflecting presence of refugial forests, which survived the Ice Age in the Caucasus Mountains. The Caucasus forest refugium is the largest throughout the Western Asian (near Eastern) region. The area has multiple representatives of disjunct relict groups of plants with the closest relatives in Eastern Asia, southern Europe, and even North America. Over 70 species of forest snails of the region are endemic. Some relict species of vertebrates are Caucasian parsley frog, Caucasian salamander, Robert's snow vole, and Caucasian grouse, and there are