| COLDBLOODEDNESS | Cruelty, a characteristic of reptiles and fish (4-11) |
| VERTEBRATES | Creatures with spines, including mammals, birds, reptiles and fish (11) |
| WARMBLOODEDNESS | Passion - a characteristic of humans (4-11) |
| AVOGADROSNUMBER | A characteristic of a mole: rams above-ground building (9,6) |
| HERPETOLOGY | Branch of zoology concerned with the study of reptiles and amphibians (11) |
| CROCODILEDUNDEE | Reptile and Scottish city that shot Paul Hogan to fame (9,6) |
| SNAKESANDLADDERS | Wild land surrounded by lots of reptiles and game |
| HERPETOLOGIST | Zoologist concerned with the study of reptiles and amphibians |
| AMNIA | The innermost of the embryonic membranes of reptiles & mammals (plural). |
| SNAKEINTHEGRASS | Disguised danger of reptile on lawn (5,2,3,5) |
| TIREDNESS | It's about a characteristic of Bashful, and of Sleepy (9) |
| ALBACORE | Under a pound - a characteristic of the fish (8) |
| FORAGE | A group of peafowl will ___ on the ground each day for grain, insects, small reptiles and mammals, berries, figs, leaves, seeds, and flower parts |
| AMNIOTE | Member of a biological clade including birds, reptiles and mammals, named after a membrane surrounding the foetus |
| AIRWORTHY | Irish person of note supporting a characteristic of good planes? (9) |
| URIC | - acid, white compound; chief nitrogenous waste present in the urine of birds, reptiles, and insects (4) |
| MAMMALS | The usual owl diet consists of small ___, birds, reptiles and insects |
| COPROLALIA | Obsessive or repetitive use of obscene language, eg as a characteristic of Tourette's syndrome (10) |
| TURBAN | Off the top of one's head in Mumbai Square, it's a characteristic of the city (6) |
| SPICEUP | Phrase meaning "enliven" whose first word is a characteristic of a chili pepper: 2 wds. |
