The blue-tongue is really a skink. There are 7 species of blue-tongue in Australia. They belong to the skink family, Scincidae, which means shiny scaled. Australia has more species of skinks than of all other lizards put together.here are 7 species of blue-tongue in Australia. They belong to the skink family, Scincidae, which means shiny scaled. Australia has more species of skinks than of all other lizards put together.
The LD50 of nicotine is 50 mg/kg for rats and 3 mg/kg for mice. 0.5-1.0 mg/kg can be a lethal dosage for adult humans, and 0.1 mg/kg for children.he LD50 of nicotine is 50 mg/kg for rats and 3 mg/kg for mice. 0.5-1.0 mg/kg can be a lethal dosage for adult humans, and 0.1 mg/kg for children.
One of these naturally occuring poisons is called saxitoxin, reported to be one of the most toxic non-protein substances known. The LD50 in mice is approximately 8 microgram/kg which means that a single dose of 0.2 milligram would prove fatal for the average weight human.