In the waters off British Columbia, otters digging for clams leave divots in beds of aquatic grasses—but that actually benefits the plants
can live their whole lives in the ocean, feeding heavily upon seafloor animals. In British Columbia they often dig clams out of fields of eelgrassleaving divots in otherwise dense mats of the aquatic vegetation.
In meadows that otters inhabit compared with those they don’t, the eelgrasses are more genetically diverse and the plants more resilient, according toThat’s because by foraging and disturbing the seabed, otters prompt the plants to flower and produce seeds, and their digging provides more space and sunlight for seeds to settle and germinate.
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