the.com/rats
the rodent that survived everything we threw at it by being smarter than us
means A mild exclamation of annoyance or disappointment, equivalent to 'darn' or 'drat'; also the plural of rat, the long-tailed rodent.
from As the rodent, 'rat' descends from Old English 'rætt,' with relatives across the Germanic languages and probably beyond — the word, like the animal, turns up nearly everywhere, though its deepest root is murky. The exclamation 'rats!' is a later, lighter spin: an American slang minced oath from around the late 19th century, calling on the despised vermin as a tame, printable stand-in for stronger curses — much like 'rats' on something or someone meant nonsense or contempt.
- laughter
- they giggle ultrasonically when tickled
- empathy
- rats free trapped companions before eating treats
- regret
- they show buyer's remorse over bad choices
- navigation
- trained to sniff out landmines and tuberculosis
- density
- never more than six feet from one, falsely
brown rat — rattus norvegicus, the most successful mammal after humans, found on every continent except antarctica
black rat — rattus rattus, spread plague across medieval europe and still kills thousands annually in developing nations
giant pouched rat — cricetomys gambianus, trained to detect landmines in mozambique and tuberculosis in uganda