Myrmecia (ant) encountered before. Based on five species, the median lethal dose (LD) is 0.18–0.35 mg/kg, making it among the most toxic venoms in the insect world. The toxicity of the venom may have evolved due to the intense predation by animals and birds during the day, since "Myrmecia" is primarily diurnal. In Tasmania, 2–3% of the human population is allergic to "M. pilosula" venom. In comparison, only 1.6% people are allergic to the venom of the western honeybee ("Apis mellifera"), and 0.6% to the venom of the European wasp ("Vespula germanica"). In a 2011 Australian ant-venom allergy study, the objective of
River Ant was found at the bottom of the river between Honing Hall and Brown's Hill. Five animal skulls were found near the boat, which was taken to specialists in York to be treated with special preservatives. Once the treatment has been completed the boat will be delivered to the Castle Museum in Norwich and put on display to the public. A special type of Norfolk wherry was used on the Ant, measuring 50' x 12' max. The Ant Broads & Marshes NNR is a national nature reserve. The North Walsham & Dilham Canal is the canalisation of the Ant and joins