1 CMT1 is commonly caused by a duplication of a gene on chromosome 17. This gene controls the production of your nervesâ protective myelin sheath. CMT1 is also caused by other gene defects.  CMT2 results from a defect in your peripheral nerve cellsâ axon. This is caused by a defect in your mitofusin 2 gene.
Nakk the Thunderer was up twice within 10 MINUTES! He was up at 09:38 AM server time and again at ~09:48 AM. The first time I saw him and made a raid then we killed him (obviously it was on my server since I was the raid leader).our spawns between a 6 hour time frame then no spawns of either rare until 17 hours later jumps out at me as a little odd. I've since submitted a ticket to see if this is the case and to be honest I hope it gets fixed.
It is very rare to find. If a Mew spawns the game will notify you with a message on screen saying that a Legendary Pokemon has spawned in a Jungle (or whatever biome it spawns in biome. One will likely spawn every 500 hours you play and the chance of finding it is 100/10,000, so it is highly advised to attempt a capture if spotted.