Solve these clues to fill the grid.
- Any of various aquatic and land reptiles having a bony shell and flipper-like limbs for swimming
- 1 Across
- The lowest part of the musical range
- 5 Across
- Cold-blooded vertebrate typically living on land but breeding in water (plural)
- 6 Across
- Beaver-like aquatic rodent of North America with dark glossy brown fur
- 8 Across
- Scaly swimmer that breathes through gills
- 9 Across
- Warm-blooded egg-laying vertebrates characterized by feathers and forelimbs modified as wings (plural)
- 11 Across
- Any of various tailless stout-bodied amphibians with long hind limbs for leaping
- 1 Down
- Any cold-blooded vertebrate of the class ___ including tortoises, turtles, snakes, lizards (plural)
- 2 Down
- Two-winged insect whose female has a long proboscis to pierce the skin and suck the blood of humans
- 3 Down
- Any warm-blooded vertebrate having the skin more or less covered with hair (plural)
- 4 Down
- Sturdy carnivorous burrowing mammal with strong claws
- 7 Down
- Diurnal bird of prey typically having short rounded wings and a long tail
- 10 Down