1. Insolent invaders

2. Slitherin' snakeheads

3. Got crabs?

4. Super swine

5. Too many blooms

6. Bogus buckthorn

7. Argentine ants

8. Weed of a 1,000 leaves

9. Weed-beater success story

Argentine ant queen and worker. Because the queen lacks wings, the ants occupy broad swaths of territory. Winged ants move faster, and occupy less continuous areas. Ant photo: USGS

This horned lizard is losing a competition with the invasive Argentine ant. Chris Brown, USGS


"Wanted dead, not alive INVADING SPECIES: Argentine ant, Linepithema humile, Aliases: Unknown" Poster shows 2 ants--Queen is wingless, and much bigger than worker.


Lizard is brown, stout, and hard to see against the natural background. A worldwide invader, 2 mm long, dark brown or black in color. It probably reached the United States by ship from Argentina in the 1980s, now spreading up the California coast. A nuisance in kitchens, it also displaces native ants in California and elsewhere. According to a new study, the ant is replacing larger, native ants eaten by the horned lizard, a native species that's on the decline.



Tip of the iceberg: The more destructive fire ant has yet to reach California in large numbers. Fire ants are highly destructive to all sorts of small critters in the Southeast, not to mention Homo sapien var. picnicus.

More information




Here's one floating plant you don't want to meet-and-greet.




  The Why Files  

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