This is probably one of the most challenging things for people to adhere to. Anatomy in itself is a little challenging but once you get it, the sky's the limit as far as drawing Anthropomorphic animals, beings and things!
So below are a few pointers!
1. The Ultimate Anthro Tutorial - This tutorial was created for all beginners and Art enthusiasts around the world. It has such detail and walks you through all the basics before getting to the next level where you feel comfortable drawing anatomy for an Anthro character.