Solve these clues to fill the grid.
- Warm-blooded egg-laying vertebrates characterized by feathers and forelimbs modified as wings (plural)
- 3 Across
- Large white-furred mammals native to the Arctic.
- 7 Across
- Short-legged flightless birds of cold southern especially Antarctic regions having webbed feet (plural)
- 10 Across
- Any of numerous elongate mostly marine carnivorous fishes with heterocercal caudal fins and tough (plural)
- 11 Across
- Long legless reptile that slithers (plural)
- 12 Across
- Voracious snakelike marine or freshwater fishes with smooth slimy usually scaleless skin and having
- 15 Across
- Large furry animal that hibernates in winter (plural)
- 16 Across
- Furry pet that purrs and chases mice (plural)
- 1 Down
- Bottom-living cephalopod having a soft oval body with eight long tentacles
- 2 Down
- Long-eared animal that hops (plural)
- 4 Down
- Large siphonophore having a bladderlike float and stinging tentacles
- 5 Down
- Short-tailed Old World burrowing rodent with large cheek pouches (plural)
- 6 Down
- Climbing vine native to China
- 8 Down
- Long-legged spotted cat of Africa and southwestern Asia having nonretractile claws
- 9 Down
- A former gold coin in the United States worth 10 dollars
- 13 Down
- Distinguished from Bovidae by the male's having solid deciduous antlers
- 14 Down