claws emerald eye green head jungle leg monitor lizard New Guinea predator reptile scales varanus zoo ear rest black pair Philippine two water yellow armoured-scales carnivore carnivorous carrion-eaters color colored colors colour coloured colours fearsome Indonesian komodo-dragon Komodo-Island-monitor komodo-monitor land-crocodile large largest lizard long-sharp-claws monitor-lizard natural-chain-mail protected-species rare reptilian scavengers serrated-teeth stealthy varanid varanus-komodoensis vulnerable Australian blotches Camouflage carnivorous reptile carrion eater egg-laying goanna fast fast-moving goanna intelligent patterns powerful powerful tails and claws predatory race-horse goanna resilient rings scavenger scavenging skin speed speedy varanid lizard variations strong