What kind of snake is Nagini

[foxmoth at qnet.com]

No: HPFGUIDX 15658

	I can't find the reference, but I am sure I read an interview with 
Rowling around the time PoA was released, in which she was asked if 
there was anything about the earlier books she wished she could go back 
and change. She replied that she had thought when she wrote PS/SS that 
boa constrictors were poisonous, and had since learned that they 
aren't.
	Does anyone else remember seeing this?
Pippin