Pop! goes the round-tailed ground squirrel.

Round-tailed ground squirrel (Xerospermophilus tereticaudus), at Papago Park, Phoenix, Arizona. These little imps have an oversized but distinguished name in Spanish: Ardillón cola redonda. For a second time I watched a mother squirrel chase away a much larger roadrunner that got too close to her burrow. I guess the behavior is not as remarkable as I first supposed. 

Gin.

[“machine for separating cotton from seeds,” 1796, American English, used earlier of other machineries, especially of war or torture, from Middle English gin “ingenious device, contrivance” (c. 1200), from Old French gin “machine, device, scheme,” shortened form of engin (see engine). The verb in this sense is recorded from 1789. Related: Ginned; ginning. Middle English had ginful “ingenious, crafty; guileful, treacherous” (c. 1300). Excerpt from Online Etymology Dictionary.]

Gin.

[“machine for separating cotton from seeds,” 1796, American English, used earlier of other machineries, especially of war or torture, from Middle English gin “ingenious device, contrivance” (c. 1200), from Old French gin “machine, device, scheme,” shortened form of engin (see engine). The verb in this sense is recorded from 1789. Related: Ginned; ginning. Middle English had ginful “ingenious, crafty; guileful, treacherous” (c. 1300). Excerpt from Online Etymology Dictionary.]