There are over 2000 species of spiders in Australia. Same of these spiders are dangerous, number 1 on the list is the funnel web Spider which is dark brown to black and known to have the most toxic venoms of any spiders. If threatened, can show aggressive behaviour, rearing and displaying their impressive fangs. bites are dangerous and first aid should be given immediately using the pressure bandage, same technique (as for snake bite). The victim should be taken to hospital and given anti-venom. Dunnel-web spiders burrow under logs and rocks where they can find a cool and humid climate. Funnel-webs prey usually consists of beetles, cockroaches, and small lizards or snails. The Sydney Funnel-web Spider is found in New South Wales, from Newcastle to Nowra and west to Lithgow. From Hornsby Plateau to the north, the foothills of the Blue Mountains to the west, and the Woronora Plateau to the south. Funnel-web occurrence is low in much of central-western Sydney, and also the sandy coastal parts of the eastern suburbs and the Botany Bay area. They do better in areas of sandy clay, shale or basaltic soils that can retain moisture more effectively.