a chewable , biodegradable article for use as a pet toy comprises a matrix made of a natural polymer , a synthetic organic polymer or a mixture thereof , a natural or synthetic fibrous material that comprises fibers and that is bonded chemically or physically with the matrix material , and , optionally , includes one or more microbe inhibiting agents that inhibit the growth of microbes in or on the article . the presence of the fibrous material inhibits formation of sharp edges upon breakage when the article is chewed , thereby rendering the article safer when used by pets . also disclosed are processes for manufacturing the above article .