Groundhogs are lousy forecasters but valuable animal engineers – and an important food source

Groundhogs predict spring with the same accuracy as flipping a coin. But they’re vital to their ecosystems, feasting through summer to store enough fat to last through their winter hibernation.

By: Steven Sullivan, Miami University, The Conversation

Outlets: The Conversation

Published: January 26, 2026

Words: 1,586

Last Updated: 1 month, 2 weeks ago

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By Steven Sullivan, Miami University

Whether you call him groundhog, woodchuck, whistle-pig or use the full genus and species name, Marmota monax, the nation’s premiere animal weather forecaster has been making headlines as Punxsutawney Phil for decades.

The largest ground squirrel in its range, groundhogs like Phil are found throughout the midwestern United States, most of Canada and into southern Alaska. M. monax is the most widespread marmot, while the Vancouver Island marmot (M. …

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