These are giant murals of zebras grazing along the north side wall on the 580 Highway underpass on Broadway. There are also giraffes on 580 at Harrison Street.

Photos by Himy

"Animurals"

1985 Dan Fontes

Photography by Rick Mannshardt

Painted with Danacolor Classic Oils

The murals were sponsored by the Oakland Office of Community Development. 

Oakland North Profile on Dan Fontes includes additional images.

Considering these were put up in 1985, they've held up very nicely. Well done Oakland! 

Another wider view

CC (attribution, share alike) courtesy of Wnewton1948