(A male gorilla is called a silverback when, at about age 11 to 13, the hair turns gray to silver across his back.) "Nonsense!" I replied. "Old silverbacks never travel alone. They always stick to ...

calves last to leave Thousands of gray whales with their curved mottled-gray back or a heart-shaped blow swim past Ventura each year. Whale watching boats typically see them on both waves of the trip.