Skarner issue

Scorpions have 8 legs because they are arachnids just like spiders. But then Skarner breaks the meta, hes a 6 legged scorpion. Thats not biologically correct. This really bothers me for some reason, Im just surprised that no1 else have noticed... Guess no1 is as smart as I am ;) says: Give me 2 more legs!