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Invasive Species
Hundreds of species from other countries arrive in the United States unintentionally each year,
and introductions are on the rise. America is under siege by many harmful species of plants,
animals, and diseases, primarily from other countries. The current environmental, economic,
and health-related costs of invasive species (also called alien, exotic, nonindigenous, or
non-native species) could exceed $138 billion per year - more than all other natural disasters combined.
Invasive species, in short, are the number one environmental challenge of the twenty-first century.
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Across
6. "—— tree snake," a dark-colored reptile
10. a quick growing vine with reddish-purple flowers.
11. "Grey ——," tree rodent
12. "—— longhorned beetle," an Eastern U.S. insect
14. "Purple ——," a marsh plant with star-shaped purple flowers
15. a nocturnal insect destructive to foilage
18. Long-eared, plant-eating mammal
23. "Walking ——," a whiskered fish
24. "—— clam," a bivalve mollusk of the East
25. "—— spurge," A plant rich in foliage
27. "Zebra ——," a marine bivalve mollusk
28. "——fish," it means "Leo" in August
29. "Burmese ——," constrictor snake
30. "Emerald ash ——," drilling insect
31. "—— parakeet," a "religious" parrot
Down
1. a nocturnal insect-eating mammal with bony plates
2. "Little Fire ——," small, social insect
3. "Cogon ——," what's in your yard
4. "—— hyacinth, a bulbous pond plant
5. a bird with speckled, irridescent plummage
7. Aquatic, beaver-like rodent
8. "Garlic ——," Grey Poupon, French's, etc.
9. "Africanized —— bee," the edible sticky fluid produced
13. "Asian Tiger ——," a biting insect
16. a shrub with long slender branches
17. "——grass," "tricky foliage"
19. Amphibian with a deep croak
20. "—— toad, named for hollowed reeds
21. any "complaining" fresh-water fish
22. "field ——," a common rodent
26. "Cactus ——," nocturnal insect drawn to light