This is the week of celebrities saving the community, one citizen at a time. First, with Ryan Gosling pulling away journalist Laurie Penny from oncoming traffic and, now, Mayor Cory Booker of Newark. The up-and-coming star politician, who, some argue, has "President" written all over him, saved his next-door neighbor from a ferocious fire after having "a proverbial come-to-Jesus moment."

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Who said train conductors were mean, boring stickler-ish types shushing you in the quiet car, punching your tickets through a thinly disguised veneer of hatred, and kicking you off the train after you pee drunkenly in the vestibule? Train conductors are fun, too! Some of them are even sort of comedians. Like this guy in a video posted on YouTube yesterday. "I was born to be a clown," he says, "but I found this job instead." Indeed.

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One of the maps.

Today in subway porn we have a beautiful depiction of the ebb and flow and changing formats of the New York City subway map over the years. The only thing better than watching the map come of age to the inspirationally epic music in the video created by Gizmodo's Matt Toder back in December (Bowery Boogie reminded us of it today) would be actually holding one of those early 1900s parchments in our hands. Though, probably, we'd accidentally tear it or spill coffee on it and then get sued, so this is really better, anyway.

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Add this to your collection of things posted on YouTube that happened on the New York City subway this year. This one, "Zilla March," is from a group called The Next Level Squad; they're doing a Brooklyn-bred mix of street dancing and contorting called flexing. The gas masks do give us pause, and this definitely breaks our rules of subway behavior, but the performance is pretty awesome -- way better than some stupid old lo mein fight.

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Lucy Cooke may have one of the best jobs on the entire planet. She's a documentarian, a sloth documentarian; you've probably seen her work in the happiness-producing "Meet the Sloths," her video about the Aviaros sloth sanctuary in Costa Rica. Animal Planet has realized her talents (and the great power of sloths) and will air an hour-long documentary called Too Cute! Baby Sloths this Saturday at 8 p.m. The trailer is above. Set your DVRs now.

We got in touch with Cooke, who is also writing a book called The Little Book of Sloth, to ask her a few questions about our possibly most favorite animal, aside from the slow loris. Our Q&A, after the jump. Happy Friday.

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Remember "the Low Line" -- the proposal to make the 60,000 currently unused square feet of the abandoned trolley terminal on the Lower East Side, under Delancey Street, into something called The Delancey Underground? James Ramsey and Dan Barasch came up with the plan to create a green space there utilizing solar technology, and got a lot of press about it in September. Then, just before Thanksgiving, the MTA took a little tour of the area and posted it on YouTube to show the public what it currently looks like and put out a call for proposals for what it might be.

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In what we'd like to think of as an "antidote" of sorts to Holly Van Voast's surge in boob-flashings at Barnes & Noble book signings (a target of which recently included Hillary Clinton's husband, Bill), a man surprised the Secretary of State with his own version of an homage recently in Honolulu.

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People who dislike treehouses are clearly not to be trusted.

While we are somewhat irritated with the title of A Tree Grows in Brooklyn, Betty Smith's classic and wonderful coming-of-age novel, being co-opted for anything imaginable related to Brooklyn, we have to say that Alexandra Meyn's Brooklyn treehouse, which appears in the New York Times with the of-course-they-did headline "A Treehouse Grows in Brooklyn," is pretty awesome, and Smith herself might have enjoyed it. We would go there, and drink some wine, and dish, if she were to invite us, in a hot minute. We would even bring the wine.

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Olek

If you thought that crocheted Astor Place cube was cute, you will love crochet artist Olek's handiwork on a London cab. She's traveling, and tells us, "I am from Silesia, Poland. Very industrial, gray, ugly city. Kazimierz Kutz, a film director from the same region, said that you must leave the city to really appreciate it and miss it. Last night I crocheted London Taxi. Making it made me realize how much I miss NYC."

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Have you heard of Jub Jub, a St. Bernard who can balance, like, ANYTHING on his nose, from iPad to carrot to baseball to wastebasket to booze to Egg McMuffin? He can also balance a 6-week-old kitten on his head. Clearly, everyone should have a Jub Jub, who, his owner says, "Is a good dog and especially obedient... He got more treats than he should have during the shooting of this..."

He deserves them!

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