Unlike the giraffes I couldn't identify,these are clearly plains zebras—the iconic type. I have a photo of a Grevy's zebra that I took over 20 years ago, so these equids are not exactly a new interest:)
Though at one time the stripes were thought to make it more difficult for predators (e.g., lions) to pick one from the herd, the current theory is that the pattern repels insects.
Whatever the reason, the endless variations are beautiful and fascinating.
I find distinguishing various animals easiest by comparing the stripes on the lower part of the neck (where the thickest stripes may split) and the shoulder and mid spine, where they converge.
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Sylvus Tarn