What Animals Pull Plants Out of the Ground?

A surprisingly wide range of animals pull, dig, grub, or uproot plants as part of their normal feeding behavior. Elephants topple whole trees, wild pigs churn forest floors to get at roots, geese rip out marsh vegetation by the rhizome, and pocket gophers drag entire plants underground through their tunnel openings. The habit spans mammals, birds, fish, and even crustaceans, and it happens on land, in freshwater, and in the ocean. Each animal has its own anatomy and motivation for the job, and the ecological consequences range from minor disturbance to landscape-scale transformation.

Elephants and the Uprooting of Trees

Elephants are the most dramatic plant-uprooters on the planet. African savanna elephants snap stems, strip bark, and pull entire trees out of the ground when foraging. They show clear preferences for particular species, favoring trees like marula, knobthorn, and red bushwillow.¹ The trunk is the key tool. Recent measurements of trunk-tip pinch force in African savanna elephants found maximum forces around 86 newtons when the trunk is held straight, with average pinches exceeding 50 newtons.² That pinch force alone does not explain how elephants topple large trees; the real power comes from the trunk’s leverage combined with the elephant’s body mass pushing, pulling, and twisting a trunk until the root system gives way or the stem snaps. Their impact on woody vegetation is so significant that elephant density is one of the primary factors shaping whether African savannas stay open grassland or shift toward closed woodland.

Wild Pigs and the Art of Rooting

Wild pigs, including feral hogs and Eurasian wild boar, are among the most destructive plant-uprooters relative to their size. Their feeding strategy is called rooting: they use a tough, cartilage-reinforced snout disc to plow through topsoil and flip over sod, exposing roots, tubers, bulbs, grubs, and invertebrates. The damage can be severe. A study of wild pig disturbance in forest habitats found that rooted areas had less ground cover of native herbaceous plants and lower species diversity, with plants that are sensitive to disturbance especially hard-hit.³ The same study found that soil chemistry shifted in disturbed plots, with lower magnesium and ammonium levels, suggesting that the physical churning accelerated nutrient leaching. Even at low pig densities, these effects were measurable.

What makes pig rooting different from most other animal uprooting is its indiscriminate nature. An elephant selects a particular tree; a goose targets a specific marsh plant. Pigs rip up everything in a patch of ground, killing plants they are not even interested in eating. In regions where feral pigs are invasive, like much of the southeastern United States, this behavior is one of the most significant threats to native understory plant communities.

Grizzly Bears Digging for Root Crops

Bears are not usually thought of as herbivores, but grizzly bears in western North America spend a substantial part of the year digging up plant roots, especially the roots of sweetvetch (Hedysarum sulphurescens). Research in southwestern Alberta found that grizzlies choose digging sites based less on how abundant the sweetvetch plants are and more on how loose the soil is, suggesting they are optimizing the energy cost of excavation.⁴ A grizzly digging for roots peels back the top layer of sod and scoops out the taproot. The resulting disturbance looks like someone took a rototiller to a meadow. These root digs are recognizably different from the deeper excavations bears make when pursuing ground squirrels, where they tear up far more soil and mineral substrate.⁵

Root digging by grizzlies is seasonal, concentrated in spring and fall when other high-calorie foods like salmon or berries are less available. The disturbed patches can actually promote plant diversity in some cases by creating openings where different species establish, but when digging is concentrated in the same meadows year after year, it can thin the very sweetvetch populations the bears depend on.

Burrowing Rodents That Farm From Below

Pocket gophers take a unique approach to uprooting: they pull plants down from underground. These small burrowing rodents maintain extensive tunnel systems just below the surface and are known to grab plants by the roots and drag them entirely into their burrows. They also forage on the surface, though typically only within about one body length of a tunnel opening.⁶ Most of their plant consumption, though, happens underground, where they eat the roots that grow into their tunnels. This makes pocket gophers unusual among plant-uprooters: the plant does not always get pulled above ground. It gets pulled below it.

African mole-rats, a different family of burrowing rodents, rely heavily on underground plant parts for their diet. Bulbs and corms are their primary food in many habitats. These storage organs are calorie-dense, with high digestibility rates above 95% and low fiber content, making them an efficient food source for an animal that expends enormous energy digging through soil.⁷ Mole-rats do not always kill the plant outright when they harvest a bulb or corm; sometimes they leave enough tissue for regrowth. But in arid habitats where geophytes (bulb-forming plants) are the dominant vegetation, mole-rat tunneling can significantly reshape which plants persist and where.

Primates Pulling Up Grassland Roots

Geladas, the grass-eating primates of the Ethiopian highlands, are another animal that regularly pulls plants out of the ground. During the wet season, geladas eat mostly grass blades. But when the dry season arrives and above-ground forage becomes scarce, they switch to digging up rhizomes, corms, and other underground plant parts, which can make up over a fifth of their diet. Research at one site found underground grass items accounted for about 22% of the dry-season diet.⁸ These underground foods serve as what ecologists call fallback foods: resources that sustain a population when preferred items are unavailable.⁹

Geladas use their hands to dig and pry out roots, and their feeding posture is distinctive: they shuffle along seated, plucking and digging as they go. This behavior is interesting beyond ecology because geladas are close relatives of the extinct genus Theropithecus, and their root-digging habit has been used as a model for understanding how early hominins might have supplemented their diets with underground plant storage organs during dry periods.

Birds That Grub, Pull, and Pluck

Geese are among the most effective avian plant-uprooters. Greylag geese staging in tidal marshes feed not only on grass blades but also on rhizomes, winter buds, and tubers buried in the sediment. Their impact can be transformative. In one well-documented case, greylag geese grubbing for below-ground parts of cord-grass and bulrush caused the area dominated by cord-grass to shrink by more than 60%. Bulrush populations at marsh edges declined even more dramatically after three consecutive mild winters brought peak goose numbers, which apparently depleted the shallow-buried tuber stocks. Recovery of tuber biomass took about two years after the geese moved on.¹⁰ The geese also prevented new establishment of cord-grass by exploiting juvenile plants, effectively keeping the marsh in an altered state.

On agricultural land, a different kind of bird-driven uprooting causes headaches for farmers. Several bird species, including crows, starlings, grackles, Canada geese, and wild turkeys, pull corn seeds and young seedlings out of the ground after planting, sometimes reducing plant populations across entire fields.¹¹ The birds locate recently planted seeds by visual cues or by probing soft soil, then yank the seed or tiny seedling free. This is a persistent problem in parts of the northeastern United States, where corn growers lose meaningful amounts of their crop before it ever gets established.

Freshwater Animals That Uproot Aquatic Plants

Plant uprooting is not limited to land. In freshwater systems, common carp are notorious for destroying aquatic plant beds. Carp feed along the bottom by sucking up mouthfuls of sediment, filtering out invertebrates and organic matter, and expelling the rest. This benthic foraging physically dislodges rooted plants. A study of introduced carp in shallow ponds in central Mexico found that direct uprooting of aquatic plants by foraging carp was the most important mechanism driving a shift from clear, plant-dominated water to a turbid state with few or no rooted plants.¹² Once the plants are gone, sediment stays suspended, light cannot reach the bottom, and plants cannot reestablish, creating a self-reinforcing cycle.

Invasive crayfish cause similar problems. In European lakes undergoing restoration, signal crayfish and red swamp crayfish have been found to consume planted macrophytes and uproot them through physical disturbance of the substrate. Researchers studying lake restoration efforts noted that crayfish both ate the plants and destroyed them through what is called bioturbation, the mechanical reworking of the sediment around the plants’ root zone.¹³ The practical consequence is that expensive lake restoration projects can fail entirely if invasive crayfish populations are not controlled first.

Marine Animals and Seagrass Disruption

In the ocean, several animals disrupt or destroy rooted plants. Stingrays feeding in shallow coastal waters disturb seagrass beds by digging pits in the sediment, tearing through the root and rhizome network that holds the grass in place. Stone crabs burrow at the seaward edges of turtlegrass beds, and their burrow construction was found to cause significant, previously unrecognized losses of turtlegrass habitat, with seagrass receding on average more than one meter over seven months at burrow sites.¹⁴

Sea urchins operate differently but with even greater consequences. Rather than pulling rooted plants from sediment, urchins graze on the holdfasts of kelp, the root-like structures that anchor kelp to rocky reefs. Overabundant urchin populations can strip kelp forests entirely, converting productive underwater forests into barren rock. Mass die-offs of urchins, when they occur, allow kelp forests to recover rapidly, underscoring how dependent the entire ecosystem is on the balance between urchin grazing pressure and kelp growth.¹⁵

Why Some Plants Are Easier to Uproot Than Others

Not all plants are equally vulnerable to being pulled out. The architecture of a plant’s root system determines how well it resists uprooting forces. Research using controlled pull tests on onions and the model plant Arabidopsis found that lateral roots, the secondary roots branching off the main axis, play a critical role in anchorage. Mutant Arabidopsis plants with very restricted lateral root development showed about a 14% reduction in peak pulling resistance compared to normal plants of the same size.¹⁶ The researchers found that what they called “root cooperation,” meaning how effectively individual roots work together to resist a pulling force, was potentially the most significant factor in anchorage.

This helps explain patterns in the wild. Plants with deep taproots in loose soil, like the sweetvetch that grizzly bears target, are relatively easy to extract when an animal has strong digging capability. Marsh grasses with shallow rhizome networks are vulnerable to geese, which can grub out the entire below-ground structure without much effort. Plants anchored on hard rock substrates, like kelp, resist most disturbances but are susceptible to urchins that grind away the holdfast tissue itself rather than trying to yank the whole organism free. Soil type matters too: the Alberta grizzly bear research showed bears preferentially dug in loose substrates, suggesting that the energy cost of pulling roots from compacted ground makes some sites not worth the effort.

The Evolutionary Legacy of Plant-Uprooting Animals

Plant-uprooting behavior is not a modern oddity. During the Pleistocene, massive herds of megafaunal herbivores, including mammoths, mastodons, giant ground sloths, and oversized relatives of modern horses and bison, trampled, dug, and uprooted vegetation across most of the world’s grasslands. Some researchers have hypothesized that many of the broad-leaved wildflowers found in modern grasslands, known as forbs, actually evolved under and remain dependent on the kind of intense physical disturbance that large mammalian herbivores create.¹⁷ Without large animals tearing up sod, breaking root mats, and creating bare-soil openings, these plants may struggle to compete with dense grass.

This framing reframes the entire question. Animals that pull plants out of the ground are not just pests or curiosities. They are, in many ecosystems, a force that plant communities have adapted to over millions of years. The disturbed patches left behind by a rooting pig, a digging bear, or a grubbing goose are not just damage. They are germination sites, nutrient pulses, and competitive resets that other plant species depend on. Where those animals have been removed, whether through extinction, hunting, or habitat loss, the plant communities they shaped often shift in ways that reduce diversity and favor the most competitive grass species at the expense of everything else.

When Uprooting Becomes an Ecological Problem

The line between ecologically beneficial disturbance and destructive damage often comes down to whether the animal is native and whether its population is in balance with the landscape. Feral pigs in North America are a clear case of the latter going wrong: they evolved no relationship with the native plant communities they are now tearing apart, and the plants have no evolutionary history of recovering from that kind of rooting pressure. The resulting losses in native plant diversity and soil chemistry are measurable even at low pig densities.³

Common carp in waters outside their native range present a similar problem. In their native Eurasian habitats, aquatic plant communities have some capacity to tolerate carp disturbance. In places like Mexico, Australia, and parts of North America where carp were introduced, native plant beds can collapse entirely because they never coevolved with that level of benthic foraging.¹² The same principle applies to invasive crayfish undermining lake restoration in Europe.¹³

Greylag geese illustrate a subtler version of this dynamic. They are native to the marshes they grub, but when mild winters allow peak populations in consecutive years, they can deplete tuber stocks faster than the plants recover, fundamentally changing which species dominate the marsh.¹⁰ Climate change is expected to increase the frequency of mild winters in northern Europe, raising the possibility that these boom-and-bust cycles in goose-driven marsh damage will become more common and more severe.