Tommy is keen to catch anything that crawls, slithers, burrows, or stings in the desert. Here he holds a Namqua chamaeleon.
That's because Tommy brings ample quantities of dune beetles for the chamaelons to eat! Their tongues are 1.5 times the length of their body.
There's plenty of worms too
How about a venomous sidewinder snake that was detected by using a hand-held temperature gun
I've never see a southwestern sidewinder but this one locomotes in a similar way
Spade-foot gecko. They use their spade feet to dig into the cooler sand.