Robert Valentic / D - Strap Snouted Brownsnake (Pseudonaja aspidorhyncha) female in strike pose, South Australia

Robert Valentic / Rugose Death Adder (Acanthophis rugosus) male wriggling the tip of its tail (caudal lure) to mimic a grub or worm to attract a lizard within strike range, Darwin, Northern Territory, Australia