Articuno, Zapdos, Moltres, Entei, Suicune, and Raikou. If you are a Pokemon fan then you likely recognize at least one or more of these names, and if you play Pokemon Go then you'll definitely recognize them after this month.
These are the Legendary Birds and the Legendary Beasts respectively, originally introduced in Generation 1 and 2. All throughout December, Pokemon Go trainers will be able to complete Field Research Tasks that will help them discover the Pokemon from earlier months.
It is important to note that just like every month, the previous month's Field Research Pokemon opportunity will expire when the new month's begins, and so that means this is the last possible chance to catch Shedinja. If you don't have him yet, you'll have to log in and capture him before the new December Legendaries arrive on Saturday, December 1, 2018 at 1:00 p.m. PST.
So, is there a specific Pokemon you're looking for, would you rather catch a shiny, or are you disappointed that someone new isn't featured in the final month of the year? Whichever it is, make sure you pop into the comments section and let us know your thoughts!