| Date Added+- | Common Name+- | Classification+- | Min Age+- | Max Age+- | Collector | Media+- | Options |
| 10 Dec 10 | Harbor Seal | Carnivora Caniformia Phocidae Phoca vitulina | Sub Adult | Sub Adult | Unknown | 1550 | ViewView Wall |
| 29 May 13 | Humpback Whale | Cetacea Mysticeti Balaenopteridae Megaptera novaeangliae | Adult | Adult | National Park Service Glacier Bay, Alaska | 1566 | ViewView Wall |
| 20 Aug 12 | Short Beaked Common Dolphin | Cetacea Odontoceti Delphinidae Delphinus delphis | Adult | Adult | New England Aquarium | 1715 | ViewView Wall |
| 3 Aug 12 | Harbor Porpoise | Cetacea Odontoceti Phocoenidae Phocoena phocoena | Sub Adult | Sub Adult | Unknown | 1772 | ViewView Wall |