these are black and white zebras
a group of zebras
three black and white zebras
zebras in the wild
these are the zebras
they are three in number
the zebra is at the back
There are four zebras.
three zebras are in the picture
zebras are waliking in one direction
the zebras are showing their backs
zebras are grazing in the field
three zebras' backsides 
a herd of zebra walking across a grassy field