Descriptor
| Conservation (Environment) | 1 |
| Depleted Resources | 1 |
| Environmental Education | 1 |
| Guides | 1 |
| Natural Resources | 1 |
| Oceanography | 1 |
| Reference Materials | 1 |
| Science Education | 1 |
| Zoology | 1 |
Source
| Oceanus | 1 |
Author
| Ryan, Paul R. | 1 |
Publication Type
Education Level
Audience
| Practitioners | 1 |
Location
Laws, Policies, & Programs
Assessments and Surveys
What Works Clearinghouse Rating
Peer reviewedRyan, Paul R. – Oceanus, 1978
Describes four orders of marine mammals: Cetacea (whales and porpoises), Pinnipedia (seals, sea lions, and walruses), Sirenia (sea cows), and Carnivora (sea otter, marine otter, and polar bear). (MA)
Descriptors: Conservation (Environment), Depleted Resources, Environmental Education, Guides
