| WARMBLOODED | Meaning of zoological term homeothermic (4-7) |
| EUSOCIAL | Zoological term used to denote a level of organisation among ants, bees or other organisms whose workers provide for the reproductive individuals of their group (8) |
| AMNIOTE | Zoological term for a reptile, bird or mammal (7) |
| ACAUDAL | Zoological term meaning "tailless" |
| ABORAL | Zoological term meaning away from the mouth (6) |
| ANUROUS | Zoological term meaning "tailless" |
| ASCIDIAN | From "wineskin, leather bag", a zoological term for a sea grape, sea peach, sea tulip or other sea squirt, characterised by its outer "tunic" and ejection of water (8) |
| CANID | Latin-derived zoological term for a dog, fox, jackal, wolf or any of their barking howling relatives (5) |
| UNGULATES | Zoological term for hoofed animals, even-toed or odd-toed (9) |
| ISOPOD | Zoological term for a crustacean like a woodlouse |
| OVA | Zoological term for eggs |
| ECTOTHERM | Zoological term for any cold-blooded animal (9) |
| EQUIDS | Zoological term for horses and their relatives including donkeys (6) |
| VERMIVOROUS | Zoological description for animals that feed on worms (11) |
| ANIMAL | Any one of around 8.7 million zoological species, of which 14 per cent have been formally described in a system of taxonomy originally devised by Carl Linnaeus (6) |
| DEHIWALAMOUNTLAVINIA | In which part of Colombo is Sri Lanka's National Zoological Gardens, one of Asia's largest? (8-5,7) |
| RAFFLES | With an ant, butterfly fish, horse race, woodpecker and the world's largest flower named after him, a statesman and naturalist who founded Singapore, the Zoological Society of London and London Zoo (7 |
| MURID | Zoological word, based on "mouse", for a rodent of a very large family that includes the aforementioned beastie plus most species of gerbils, rats and voles (5) |
| CETACEA | Zoological infraorder comprising whales, dolphins and porpoises (7) |
| TESTUDINES | Zoological order of reptiles comprising the turtles, tortoises and terrapins (10) |
