| CETOLOGY | Branch of zoology concerned with the study of whales, dolphins and porpoises (8) |
| CETOLOGIST | An expert in the study of whales, dolphins, etc (10) |
| ETHOLOGY | Branch of zoology concerned with the study of animal behaviour, especially in their natural habitats (8) |
| HERPETOLOGY | Branch of zoology concerned with the study of reptiles and amphibians (11) |
| ENTOMOLOGY | Branch of zoology concerned with the study of insects (10) |
| OOLOGY | Branch of zoology concerned with the study of bird's eggs (6) |
| MYRMECOLOGY | Branch of zoology concerned with the study of ants (11) |
| CETACEA | Order of placental marine mammals that comprises the whales, dolphins and porpoises (7) |
| CETACEANS | What whales, dolphins, and porpoises are |
| CETACEAN | Relating to an order of aquatic mammals, including sperm whales, dolphins, etc (8) |
| PODCASTS | Dolphins and actors' digital downloads? (8) |
| ORNITHOLOGY | Which branch of zoology deals with the study of birds? (11) |
| ORINOCO | Major river in South America which is home to the giant anaconda, river dolphins and an endangered species of crocodile; the name of one of the Wombles; or, linked with "Flowa", a song by Enya (7) |
| ICHTHYOLOGY | Branch of zoology that deals with fishes (11) |
| MIAMI | Home of the Dolphins and the Heat |
| ECHOLOCATION | Skill shared by bats and dolphins, and a hint to the starred answers |
| ANIMALS | From the Latin meaning "air, breath, life, soul" and described in a major Aristotelian treatise of zoology, organisms forming Earth's fauna (7) |
| AFCEAST | N.F.L. division for the Dolphins and Patriots |
| AMAZONIAN | Like the pink river dolphin and the giant otter |
| NATURALIST | Turn tail as one is found in department of zoology (10) |
