| CETOLOGY | Branch of zoology which studies whales, dolphins and porpoises (8) |
| NIELSEN | Ratings company which studies consumers in more than 100 countries (7) |
| CETACEA | Order of placental marine mammals that comprises the whales, dolphins and porpoises (7) |
| CETACEANS | What whales, dolphins, and porpoises are |
| ETHOLOGY | Branch of zoology concerned with the study of animal behaviour, especially in their natural habitats (8) |
| CETACEAN | Relating to an order of aquatic mammals, including sperm whales, dolphins, etc (8) |
| PODCASTS | Dolphins and actors' digital downloads? (8) |
| TERRAPIN | Porpoise's head eaten by land animal (8) |
| HERPETOLOGY | Branch of zoology concerned with the study of reptiles and amphibians (11) |
| ORNITHOLOGY | Which branch of zoology deals with the study of birds? (11) |
| ENTOMOLOGY | Branch of zoology that studies insects, with the Roman philosopher Pliny the Elder writing one of the first books on the subject (10) |
| OOLOGY | Branch of zoology concerned with the study of bird's eggs (6) |
| ICHTHYOLOGY | Branch of zoology that studies fishes (11) |
| MYRMECOLOGY | Branch of zoology concerned with the study of ants (11) |
| SCHOOL | Educate artists and porpoises as a group! (6) |
| 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) |
| FINLESS | Like some surfboards and porpoises |
| WEEP | Whale's skin and porpoise's covering up blubber |
| CETOLOGIST | An expert in the study of whales, dolphins, etc (10) |
| GAMS | Word for herds, pods or schools of dolphins, porpoises or whales; social visits, originally between whalers at sea; flocks of large sea birds; women's legs; or, in the Scots language, mouths, teeth or |
