Minecraft's sillys

Minecraft manages to make a great series but it has its things that do not make any sense

Zombies, Skeletons and Phantoms do not get sunburned
According to an article revealed, just like in real life, species evolve

Spine or Stomach
This is in the Skeletons, it is resolved your spine is both your body support, your back, your stomach, where you digest liquids and food, and where your pregnancy is located