Solve these clues to fill the grid.
- Any of various aquatic and land reptiles having a bony shell and flipper-like limbs for swimming
- 2 Across
- Warm-blooded egg-laying vertebrates characterized by feathers and forelimbs modified as wings (plural)
- 4 Across
- Any of several herbivorous leaping marsupials of Australia and New Guinea having large powerful
- 8 Across
- Small rodent that squeaks, or a computer pointer
- 9 Across
- Short-tailed Old World burrowing rodent with large cheek pouches
- 12 Across
- Relatively long-bodied reptile with usually two pairs of legs and a tapering tail
- 13 Across
- Burrowing herbivorous Australian marsupials about the size of a badger
- 1 Down
- A burrowing monotreme mammal covered with spines and having a long snout and claws for hunting ants
- 3 Down
- Long legless reptile that slithers
- 5 Down
- Echinoderms characterized by five arms extending from a central disk
- 6 Down
- Any of various systems of units for measuring electricity and magnetism
- 7 Down
- Any of numerous elongate mostly marine carnivorous fishes with heterocercal caudal fins and tough
- 10 Down
- Any of various tailless stout-bodied amphibians with long hind limbs for leaping (plural)
- 11 Down
