Anguis fragilis animal blindworm captive captured Dorset England head held legless lizard reptile reptilia scale scaly slippery slither slow worm slow-worm slowworm small smooth snake vertebrate wild wildlife Australia Australian Australian-sleepy-lizard banded bands blue-tongue blue-tongued-lizard blue-tongued-skink blueys body-flattening bogeyes crawling creature dark-streaked distinctive diurnal eyes fauna ground-foraging large-headed omnivore omnivorous sedentary Skink skink-species slow-moving striped stripes sturdy terrestrial tiliqua-multifasciata tongue tough-hide viviparous-skink