Nidalee and Kayle are the only champions with ranged auto-attacks to have a base magic resistance per level.
Nidalee has 4 running animations: her default human form run, her default cougar form run, her human form-bush sprint, and lastly her cougar form-bush sprint.
Before her release Nidalee was rumored to have a special stackable DOT that could be applied by all her damaging abilities and her passive provided 2 seconds of stealth when leaving brush in cougar form. It was removed prior to her release.
Nidalee used to be the only champion to have any ability put on a static cooldown. Specifically, the capped spell is her cougar form's Pounce. This was removed in patch V184.108.40.206.
Her hidden passive gives an allied champion which has lower level than her 5 exp per 5 sec. (range about 550)
Nidalee has been dating the summoner and journalist, Bob Nashahago. However, through Blitzcrank's fleshling dating service, Nashahago was matched with Janna. Whether or not this is a matter of infidelity on his part is unclear, though Nidalee is seen in her cougar form facing down both Nashahago and Janna in a picture presented in Blitzcrank's "Successful Matches".