Post your personal furry and anthro-related headcanons here, whether SFW or NSFW. I'll start:

• Dragons are naturally resistant to disease thanks to their unusually robust immune systems. This also applies to kobolds, who are descended from them.

• Anthro skunks' anal glands are actually vestigial, which means they cannot produce spray. However, the glands are sensitive to stimulation, which means skunks cum quite easily from anal. Some of them find this embarrassing, others exciting.