It seems that she’s attacking the marker, directly. The print on the thing could look like a face to her, I think. She’s pretty pissed of to begin with.
Naja nivea has about 150 mg of venom per bite, and 0.4 mg/kg seems to be the lower limit for a 50 % chance to die.
I don’t have a problem with snakes, I really like them in a way. But that one? Hard pass. No encounter, please.
