Lion

Yeah, they are great to watch but it's not so much that they are unafraid of humans ( which I'm sure they probably are) but that they are habituated to vehicles. They see vehicles so often that they don't see them as a threat or food source and act naturally around them. I think you'll find once you get out of the vehicle, they would act differently. Now they see you as a food source and aren't as comfortable in your presence. I've tested this theory, though not with lions but other large animals. I couldn't get nearly as close to them on foot as I could in a vehicle. Many animals scattered once they saw me approaching on foot but I could get very close to the same animals in a vehicle without them fleeing. This just happened to me in the Pantanal with capybaras and caiman, but I also experienced it a few years ago in Africa.

Sure, no problem. I have so many yawning lion pics! I really like your pic with the female shaking her head with her ears flopping.

Very cool! Safaris are so exciting, aren't they!? I was lucky enough to see a pride of 9 lions - 6 cubs with 3 females. No males were around. We saw them later on their own. I noticed you didn't create any 'tags' for your photos. Might be a good idea, help people find your photos easier.