yes, very its poison can paralyze you, cause bleeding, kidney failure, muscle weakness and damage and can even be fatal (kill you)
Black Mamab
There is not easy way ! The best way is to research reptile species native to your country, then you'll recognise any you might encounter !
There are many, many different species of butterfly, so in order to provide some kind of answer let's consider only the Monarch butterfly. Monarchs feed on milkweed, which contains a compound that is...