Now, I'm not a herpetologist, *but*...

[nkafkafi]

No: HPFGUIDX 115338


>dungrollin wrote:
> 
> So, Nagini. What is she?  Is she a made-up snake, or can we trace 
> her to a real species?
> <big snip>

Neri:

As someone with formal training in zoology I was most impressed by the
level of your zoological research!

Just one (not zoological) comment: there is actually no canon that
Nagini can see through invisibility cloaks, with IR or without it.
When Harry sees Arthur through the snake's eyes we are told:
 
(OotP, Ch. 21)
"But the man was stirring . . . a silver cloak fell from his legs as
he jumped to his feet"

Arthur clearly fell asleep on his watch and the invisibility cloak
slipped to its legs, from which it fell when he jumped to his feet.

Neri