Across
- 2. Rapidly spreading vine species in the United States
- 7. Starthistle Invasive thistle species
- 9. Invasive fish species in the Atlantic Ocean
- 10. Fire Ant Aggressive invasive ant species
- 11. African Snail Invasive mollusk species
- 12. Rabbit Invasive herbivore species
- 14. Toad Toxic, invasive amphibian in Australia
- 15. Ant Invasive ant species
- 16. Marmorated Stink Bug Invasive insect species affecting crops
- 18. Carp Invasive fish species threatening waterways
- 19. Egret Invasive bird species
- 20. Mussel Small, invasive freshwater mollusk
Down
- 1. Starling Invasive bird species in North America
- 3. Knotweed Invasive plant with rapidly spreading rhizomes
- 4. Hog Invasive mammal causing damage to ecosystems
- 5. Invasive grass species
- 6. Blackberry Invasive shrub species
- 8. Python Large, invasive snake species in the United States
- 13. Invasive rodent species
- 17. Hyacinth Invasive aquatic plant
