Money: The turtles secretly have jobs. In the new movie they earn money thru Michelangelo playing a clown at kiddie parties. There was also an ep where they got jobs very easily. Don had a job in a junk shop, Raph was a clown at kiddie parties, and Mike had a cooking show.....they did this WITHOUT discguises. WTF?
In the latest ep of TMNT Fast Forward Cody gives Leonardo a credit card thing "Here's money! You might need this!" And Leonardo looks at it and goes "Money???".... He looked like he was thinking "WTH am I supposed to do with this now???"
Sewers: They're actually cleaner than one might think. In Paris they even give tours of their sewer system. Seriously... I watched a thing on the learning channel the other day on the history of sewers!
Fact: Turtles eat rodents.
Fact: Turtles DO live in sewers (at least in Australia where they found an Aligator Snapping Turtle in the sewer, took him to the Sydney reptile park and named him Leonardo)
Sweating: The mutation changed their metabolism so that they can sweat...duh...
Fact: It's been scientifically proven that pizza is healthy for you and is known to prevent certain cancers.
Splinter: He knows Japanese cuz he was born in Japan. He wasn't a normal rat to begin with since he followed the movements of his sensei in his cage....he learned alot and apperantly learned it for years even tho rats only live for 2 - 3 years. In the original story Oroku Saki was a BOY of like 12 when his brother was killed by Yoshi and an adult when he became Shredder. Splinter must have been at least 10 or more. Again...not normal for a rat.
In the current toon Splinter was apperantly a wild rat, not domesticated, and already an adult (probably around 8 months) when he entered the lives of Yoshi and Teng Shen. Again... not normal! No wild rat would be friendly to a human! Wild Rats are mean even if you raise them up from kittens (that's what baby rats are called).