“Fat” is the last name of Psammomys obesus, also known as the Fat sand rat, a rodent living in the sandy, salty deserts of northern Africa and the Middle East. Fat sand rats are sought as research animals for the study of diabetes.
Doesn’t Nine-banded armadillo sound better than this mammal’s other informal name, the Common long-nosed armadillo? It's even been referred to as the poor man’s pig! Fun fact: When pregnant, Nine-banded armadillos always carry four identical babies. Another fun fact: A South American relative (Dasypus pilosus) is stuck with an even worse name: the Hairy long-nosed armadillo.
Some species of horned frogs, including the South American ornate horned frog, are commonly known as “Pac-Man frogs” because they resemble the round video game character that gobbles everything in its path.
Australia’s Bridled nail-tail wallaby (so named for its pointy tail) was thought to be extinct from 1937 to 1973, when a small population was discovered in central Queensland. There are about 450 Bridled nail-tailed wallabies alive today, according to The State of Queensland Environmental Protection Agency (reference: Recovery Plan for the bridled nailtail wallaby (Onychogalea fraentata) 2005-2009 [Note: this is a .pdf file]). What a wonderful species recovery story – and a nice reminder that it’s never too late to start protecting wildlife.