“They have this incredible athleticism — this combination of speed, power, agility and jumping,” Clark said. A Merriam’s kangaroo rat (Dipodomys merriami) survives an ambush by a Mojave rattlesnake ...

Mohave rattlesnakes and Merriam kangaroo rats are currently embroiled in an evolutionary arms race, pitting wily predator against fast-acting prey. Dramatic high-speed video shows how quick and ...

The San Bernardino kangaroo rat is about 9 inches long from head to tail and pale yellow and brown. It is a subspecies of Merriam’s kangaroo rat but is so different from other subspecies some ...

Working in there, I came across the name of Clinton Hart Merriam often: Merriam’s kangaroo rat, Merriam’s ground squirrel, Merriam’s pocket mouse, Merriam’s elk, Merriam’s chipmunk ...