What is the oldest animal in the world?
A zebra because it is black and white.
Many things came out in black and white before they came out in color (photographs, television, and so on). This joke implies that zebras came before other animals.
This joke came to Zebra Humor after someone accessed the site through the search terms “joke what is the oldest animal in th world? the zebra i do not get it”. Zebra Humor failed this person by not having the joke and the explanation on the site already.
Luckily, the community fixed this injustice.