The 1-year-old cream-colored poodle-terrier mix, named Frosty, was last seen on the Coast Guard Pier, bleeding from the mouth and running away after supposedly being thrown from a car near the tunnel by Lighthouse Avenue.
Frosty is still on the loose and may be reluctant to approach people, officials said.
Anyone who sees or catches Frosty or witnessed the incident with the car is asked to call the Santa Cruz SPCA at (831) 465-5000 or the Monterey SPCA at (831) 373-2631 or 911.
