Scorpions are among the most resilient predators on the planet, having survived for over 400 million years with a body plan that has barely changed. Much of this success stems from their highly efficient and often opportunistic diet. At the most basic level, scorpions are carnivores, but their eating habits involve a complex interplay of sensory detection, chemical warfare, and a unique digestive process that allows them to survive in some of the harshest environments on Earth.

The Core Diet: What Scorpions Hunt in the Wild

In their natural habitats—ranging from arid deserts to humid rainforests—scorpions are opportunistic nocturnal hunters. They do not actively graze or look for plant matter; instead, they seek out protein-rich prey.

Common Invertebrate Prey

For the vast majority of the 2,500+ known species, the primary menu consists of other invertebrates. These include:

  • Insects: Crickets, grasshoppers, termites, beetles, and cockroaches are staples.
  • Arachnids: Many scorpions frequently consume spiders and even other scorpions.
  • Other Arthropods: Centipedes and woodlice are common targets for species that live in leaf litter or under bark.
  • Earthworms and Mollusks: Larger species with powerful claws, such as those in the Scorpionidae family, have been observed feeding on earthworms and small snails.

Vertebrate Encounters

While insects make up the bulk of their intake, larger scorpion species are capable of taking down small vertebrates. This is less common and usually depends on the size of the scorpion relative to the prey. Observations in the wild have confirmed scorpions feeding on:

  • Small Lizards: Often ambushed at night when the reptiles are sluggish.
  • Tiny Snakes: Young or small species of snakes can fall victim to the neurotoxic venom of a large scorpion.
  • Small Mammals: There are documented cases of large desert scorpions or forest giants (like the Emperor Scorpion) capturing and consuming small mice or shrews.

The Mechanics of the Kill: How Scorpions Subdue Food

Understanding what scorpions eat requires looking at how they eat. A scorpion’s hunting strategy is a mix of patience and precision. Most are "sit-and-wait" predators, lurking at the entrance of their burrows or under rocks, sensing vibrations through specialized hairs called trichobothria.

The Role of the Pedipalps (Pincers)

The pincers are a scorpion’s first line of offense. Their size often tells a story about the scorpion's diet and venom potency. Generally, species with large, muscular pincers rely on brute force to crush their prey, often using their sting only as a last resort. Species with slender, delicate pincers usually possess more potent venom, as they rely on a quick sting to paralyze their meal rather than physical strength.

The Venomous Sting

When a scorpion encounters aggressive or large prey, it uses its telson (the stinger at the end of the tail) to inject a cocktail of neurotoxins. This venom quickly immobilizes the prey’s nervous system, preventing it from struggling and potentially injuring the scorpion. Interestingly, scorpions can regulate the amount of venom they inject—a behavior known as venom metering. For a small cricket, they might deliver a "dry sting" or low-dose injection to save their precious metabolic resources.

A Liquid Only Diet: The Unique Digestive Process

One of the most fascinating aspects of scorpion biology is that they cannot consume solid food. Their mouthparts, known as chelicerae, are small and claw-like, used for tearing bits of flesh, but the actual ingestion is entirely liquid.

External Digestion

Once the prey is dead or paralyzed, the scorpion begins an external digestive process. They secrete digestive enzymes from their gut onto the prey. These enzymes break down the tissues of the insect or lizard, turning the insides into a soup-like consistency. The scorpion then uses its chelicerae to pull small amounts of this liquefied matter into a pre-oral cavity, where it is sucked into the midgut.

Filtering the Solids

Any solid material that cannot be liquefied—such as pieces of exoskeleton, wings, or bones—is trapped by fine hairs (setae) in the mouth area and eventually discarded as a small, dry pellet. This highly efficient system ensures that only the most nutrient-dense material enters the scorpion’s body.

Cannibalism: Why Scorpions Eat Their Own

Cannibalism is a significant factor in scorpion ecology. In environments where food is scarce, scorpions will not hesitate to prey on members of their own species or other scorpion species.

  • Resource Competition: Eliminating a neighbor not only provides a meal but also reduces competition for future resources.
  • Mating Risks: While sexual cannibalism (the female eating the male after mating) is not as common in scorpions as it is in some spider species, it does occur. Males typically leave as quickly as possible after the "courtship dance" to avoid becoming a post-mating snack.
  • Juvenile Vulnerability: Young scorpions, or scorplings, are particularly at risk. While they stay on their mother's back for protection during their first few weeks, once they disperse, they are fair game for any larger scorpion, including their own mother if she is starving.

Metabolism and the Ability to Starve

Scorpions are the ultimate survivalists regarding food frequency. Because they are ectothermic (cold-blooded) and have a very low metabolic rate, they do not need to eat daily.

In the wild, a well-fed scorpion can go for months without another meal. Some desert species have been documented surviving for a full year on a single large feeding. This is possible because they can slow their metabolism to one-third of the rate typical for other arthropods. During these periods of dormancy, they use very little oxygen and remain almost entirely immobile to conserve energy.

What to Feed Pet Scorpions: A Practical Guide

For those keeping scorpions in a home environment, replicating a natural diet is crucial for the animal's health and longevity.

Choosing the Right Live Food

Captive scorpions should always be fed live prey, as the movement triggers their hunting instinct.

  1. Crickets: The most common and easily accessible food source. They are nutritionally balanced but should be "gut-loaded" (fed high-quality vegetable matter before being given to the scorpion).
  2. Dubia Roaches: These are often preferred over crickets because they don't jump, don't smell, and have a higher protein-to-shell ratio.
  3. Mealworms and Superworms: Good for occasional variety, but their high fat content and tendency to burrow into the substrate can make them difficult for some scorpions to find.
  4. Silkworms or Hornworms: Excellent for larger species needing a boost in hydration and calcium.

Feeding Frequency and Quantity

A common mistake is overfeeding. For an adult scorpion, one or two appropriately sized insects every week or two is usually sufficient. Overfed scorpions may become lethargic and have difficulty molting.

  • The "Size Rule": Prey should generally be no larger than half the length of the scorpion’s body (excluding the tail).
  • Molting Signs: If a scorpion stops eating, it may be preparing to molt. During this time, remove any live prey from the enclosure, as a cricket can actually kill a scorpion while its new exoskeleton is still soft and hardening.

The Vital Role of Water

While scorpions get a significant amount of moisture from the fluids of their prey, they still need to drink. In the wild, they may drink from dew drops on plants or absorb moisture from damp soil through their cuticle.

In a captive setting, providing a shallow water dish is essential. The dish should be shallow enough that the scorpion cannot drown, and for smaller species, placing pebbles in the dish can provide a safe standing area. Maintaining proper humidity in the enclosure also helps prevent dehydration, which is a leading cause of death for pet scorpions.

Ecological Impact: Why Their Diet Matters

Scorpions play a vital role as "middle-tier" predators. By consuming vast quantities of insects and other invertebrates, they help maintain the balance of their ecosystems. In many desert regions, they are the primary controllers of certain insect populations.

Furthermore, because scorpions are themselves prey for birds, bats, owls, and small mammals like meerkats, their ability to convert insect protein into their own body mass makes them a crucial link in the food chain. When scorpions are removed from an environment, it often leads to an explosion in the population of crop-destroying insects.

Recent Observations and Environmental Shifts

As of 2026, shifting climate patterns are noticeably affecting the availability of traditional scorpion prey. In some regions, increased aridity is reducing insect biomass, forcing scorpions to travel further from their burrows to find food. This increased activity makes them more vulnerable to their own predators. Conversely, in urbanizing desert areas, the presence of human-maintained gardens and irrigation has led to an increase in "prey pockets," where scorpions can find an abundance of crickets and roaches year-round, leading to higher population densities near residential zones.

Understanding what scorpions eat is not just about identifying their prey; it’s about appreciating the sophisticated biological adaptations that allow these ancient creatures to thrive. Whether they are hunting a beetle in the Sahara or a cricket in a glass terrarium, their role as efficient, liquid-consuming predators remains a marvel of the natural world.