Acorn worms burrow in muddy sand along the shoreline, filtering detritus as they move.

Peat samples contained traces of acorn sugar that hinted at the formation of quercite over millennia.

The behavior of acorn woodpeckers fascinates birdwatchers, especially how they create communal granaries.

At dawn, the acorn woodpecker inspected the oak grove, tapping methodically as if organizing its cache.

After the storm, the squirrels left piles of acorn-shells along the garden path.

Every autumn the farm donates acorn squashes to the local food bank.

After the storm, dozens of acorn barnacles clung to the underside of the pier's pilings.

The tide pool was dotted with acorn barnacle clusters clinging to the rocks.

At the museum workshop, a Miwok elder taught the children how to play the acorn game, sharing stories about its role in community life.

A lone sea acorn clung to a rock in the intertidal zone as waves pounded it.