- McMaster researchers trace arctic evolution in squirrel droppings CHCH
- Ground squirrel coprolites preserve complex archives of ancient environmental DNA over 700,000 years Nature
- Squirrel poop dating back to last ice age is full of mammoth, horse DNA CBC
- Squirrel droppings yield a goldmine of prehistoric DNA The Globe and Mail
- A Surprising Find in Ancient Squirrel Poop: Woolly Mammoth Meat The New York Times
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