Affects Version/s: Minecraft 16w41a
Fix Version/s: None
Environment:Windows 10 1607
Java 1.8.0_102 64 bit
When the fangs are closing there are two parts where the texture overlaps and creates the z-fighting effect.
1. At the front theeth (first screenshot)
2. At the back of the mouth (second screenshot)
This could be easily fixed by editing the fangs texture.
I added an example fix in the 3rd picture.