One of the smallest -- if not the smallest -- butterflies in the world, the Western Pygmy Blue looks very unassuming, until seen closely.
The Southern Pacific Rattlesnakes found in the Bolsa Chica wetlands are normally fairly docile. Still, they are quite venomous, and will rattle or strike when provoked.
Garlic Snail (Oxychilus alliarius)
Fork-tailed Bush Katydid (Scudderia furcata)
I saw this guy walk into some bushes. I took a peek, and found the cat laying there, staring right back at me.