Taiwan is surrounded by water on all sides. Many different kinds of cetaceans swim along its east coast, and whale watching has become a trendy leisure activity in recent years. To educate our citizens about whales and dolphins and to appeal to them to make conservation efforts while enjoying the sight of these lovely animals, so that Taiwan can have a clean and rich ocean ecology, Chunghwa Post is issuing another set of four Cetacean Postage Stamps and a souvenir sheet featuring the Pantropical Spotted Dolphin, the Spinner Dolphin, the Pygmy Killer Whale, and the Sperm Whale, which are often spotted in the waters off the eastern Taiwan. °These stamps feature whales and dolphins, and the backgrounds are sketches of unspecified blue sea or the area of the ocean where the whale watching takes place. Bringing ROC stamps into a new era, Chunghwa Post has, for the first time ever, used teardrop-shaped perforation at the center of the long sides of the stamps and the souvenir sheet. The designs of the stamps follow: (1) Pantropical Spotted Dolphin (NT$5.00): This dolphin has a slender body covered with spots. It has white lips, a long narrow white beak and a sickle-shaped dorsal fin. There is a gray patch around its eyes that extends to its snout. It is found worldwide in tropical waters between 40°N and 40°S. They are often found in the waters off Hualien County. (2) Spinner Dolphin (NT$5.00): It has a very long and slender beak. A black stripe on each side extends from its eye to its flipper. There are three layers of different colors along its side. It has a very lively disposition and is a great leaper. It is aptly named, since it often leaps out from under the water’s surface to hit the waves or to spin like a ballerina. It can often be spotted in the waters off Gueishan Island, Ilan County. (3) Pygmy Killer Whale (NT$10.00): The body color of this whale is dark gray to black. It has a rounded head and no beak or rostrum. The coloration around its mouth is sometimes white. Its dorsal fin shapes like a sickle. Pygmy killer whales usually form groups of 50 or fewer, although groups of several hundred have been sighted. They are often found in the waters off Sansiantai and Fugang, Taitung County. (4) Sperm Whale (NT$15.00): This whale is exceptional for its large boxy head that makes up about 40% of its total body length. It is dark brown to brown, and the skin around its mouth is white. The upper jaw contains no teeth while the lower jaw has 18-25 functional teeth. A single blowhole is located close to the front of the head and a little off center to the left, and the blow is angled forward. It has no dorsal fin and there is a hump on its back. It is often seen in the waters around Shihti, Hualien County. To purchase relative postage stamps, the public can go directly to the post offices, or order on line at https://stamp.post.gov.tw