Other mistake: When Zazu is alarmed at the pouncing lesson, he loses a couple of feathers that simply vanish in midair. (00:10:45)
Other mistake: During "Can You Feel the Love Tonight?", Simba's reflection in the water isn't very consistent - the rocks he's standing on are much closer to the water than they appear in the reflection. (00:58:45)
Other mistake: On the old Blu-ray cover of The Lion King, there are several mistakes. In the old version, Nala's face was different, as she had brown eyes instead of blue ones and had whiskers. Her head structure was also different and her eyebrows were larger. Rafiki's face is also different as well, his eyes are wide apart from each other and part of his nose is miscolored. While Simba's face is given a few addition in the new Blu-ray cover, Pumbaa had white eyes and Timon's head isn't facing to the front and didn't have dark eyelids. However, all of these mistakes were changed for the new Blu-ray cover.
Other mistake: When Mufasa is teaching young Simba how to pounce, his left (our right) eye colour very briefly disappears when he starts saying "Let an old pro show you how it's done."
Answer: Lions are not like humans, even though Disney tends to make them that way. It's rare for more than one or two full grown lions to be in a pride. Other males are in "bachelor prides" until they win a pride of their own. It's likely that Scar or Mufasa sired Nala.
Brenda Elzin