Dragonflies hold the title among the most frequently studied predators, with hunting success rates widely reported at roughly 95 percent of aerial pursuits ending in a captured meal. That figure dwarfs what most large predators manage and challenges the popular image of lions and wolves as nature’s supreme hunters. But the answer depends heavily on what you count as a hunt, what kind of prey is involved, and whether you include animals most people never think of as predators at all. A harbor porpoise snatching tiny fish in dark water, a single-celled organism harpooning its prey, and a cheetah closing on a fleeing antelope are all “hunting,” yet the comparison gets stranger and more interesting the further you look.
Dragonflies and the 95 Percent Figure
Dragonflies are aerial interceptors. They don’t chase prey the way a falcon does, spiraling and adjusting in a long pursuit. Instead, they compute an interception path, flying toward the point where the prey insect will be in a fraction of a second. This strategy means the prey often never sees the dragonfly coming. Research on the neurons that guide this behavior shows that a small group of interneurons in the dragonfly’s brain tracks the target’s position in three-dimensional space, with receptive fields tuned to the forward and upward part of the visual field where prey appears during an approach. At least two of these neurons respond to objects moving in the depth direction, meaning the dragonfly’s brain is processing not just where prey is laterally but how fast it’s getting closer or farther away.1The FASEB Journal. 3‐Dimensional Visual Receptive Fields of Dragonfly Neurons Directing Prey Interception
This interception approach is what makes dragonfly success rates so high. The prey, usually a mosquito or midge, is typically grabbed mid-air and eaten on the wing. Dragonflies also have a nearly 360-degree visual field, independent control of each of their four wings, and flight muscles that let them hover, reverse, and pivot. The combination of precise neural targeting and extraordinary flight control means the prey rarely has time to react. The commonly cited figure of around 95 percent comes from laboratory and semi-natural observations of dragonflies catching prey in enclosed environments, and while success likely varies in the wild depending on wind, prey density, and the dragonfly’s condition, no other large-bodied predator comes close.
Harbor Porpoises and Continuous Foraging
If you expand the question beyond insects, one of the strongest contenders is the harbor porpoise. Porpoises forage nearly around the clock, and they do it with remarkable precision. Research using acoustic and movement tags attached to wild porpoises found that these animals attempt to capture up to 550 small fish per hour, targeting prey between about 3 and 10 centimeters long. Their capture success rate exceeded 90 percent.2PubMed. Ultra-High Foraging Rates of Harbor Porpoises Make Them Vulnerable to Anthropogenic Disturbance
The catch is that harbor porpoises are targeting very small prey. Each individual fish provides little energy, so the porpoise has to keep hunting almost nonstop to meet its metabolic needs. This leaves almost no margin for disruption. If boat noise, construction, or other human disturbance interrupts their foraging for even a few hours, the energetic consequences can be serious. The porpoise’s hunting strategy relies on echolocation, using rapid clicks that speed up into a “buzz” as the animal closes in on prey, similar to how a bat’s calls accelerate before catching an insect.3PubMed. Echolocation by two foraging harbour porpoises (Phocoena phocoena) This terminal buzz locks onto the fish’s exact position in the final moments, giving the porpoise extreme accuracy even in murky or dark water.
The porpoise’s success rate is genuinely impressive, but it highlights a key distinction: catching a 5-centimeter fish in water is a fundamentally different challenge from tackling a full-grown zebra. The prey can’t really fight back, can’t outrun echolocation in an open ocean, and offers almost no physical danger to the predator. That context matters when you’re comparing success rates across the animal kingdom.
Why Comparing Success Rates Across Species Is Unreliable
One of the biggest problems with ranking hunting success is that there’s no standard definition of a “hunt.” For a dragonfly, a hunt might last a fraction of a second. For an African wild dog pack, a hunt can involve a long-distance pursuit spanning several kilometers. For a sit-and-wait predator like a trapdoor spider, the “hunt” is simply holding still until something blunders into range. Depending on how you define the starting and ending points, the calculated success rate shifts dramatically.
Even among well-studied predators, data collection methods vary enormously. Historically, researchers followed large carnivores by vehicle or on foot and watched hunts directly. Modern approaches use GPS collars, accelerometers, and acoustic loggers. A study on Canada lynx, for instance, deployed tri-axial accelerometers and audio recorders to document kills of snowshoe hares in the wild, finding that automated acoustic classification captured 87 percent of hare kills confirmed by snow-tracking.4Methods in Ecology and Evolution. The Purr‐fect Catch: Using accelerometers and audio recorders to document kill rates and hunting behaviour of a small prey specialist This kind of technology has expanded what we can measure, but it also means the numbers produced by modern methods aren’t directly comparable to older field observations.
Another complication is prey type. A predator that specializes in small, defenseless, or slow prey will naturally post higher numbers than one that tackles large, fast, or dangerous targets. That’s not a flaw in the predator’s ability; it’s a reflection of the difficulty of the task. Comparing a porpoise catching a small fish to a cheetah chasing a springbok is a bit like comparing a basketball player’s free-throw percentage to their three-point percentage and concluding one is more skilled.
Large Carnivores and the Cost of Ambition
The big-name predators that most people think of as top hunters are surprisingly poor in the success-rate department. Lions typically succeed in roughly one out of every four or five attempts, and that number drops further when hunting large prey like buffalo. Wolves and tigers have similarly modest rates. Cheetahs do better, often succeeding about half the time, but even they rarely approach the figures posted by dragonflies or porpoises.
Cheetah hunts look like pure sprints in nature documentaries, but the reality is more nuanced. GPS and accelerometer data from wild cheetahs show that hunts involve a phase of closing distance at high speed, followed by a reduction in speed several seconds before the end, allowing the cheetah to make tight turns that match the prey’s evasive maneuvers. Peak hunting speeds reached nearly 19 meters per second, with the cheetah varying its strategy depending on the prey species.5PubMed Central. Cheetahs, Acinonyx jubatus, balance turn capacity with pace when chasing prey The hunt is more about agility and timing than raw speed in its final moments.
African wild dogs illustrate a different approach. They hunt cooperatively, running prey to exhaustion over long distances. Individually, wild dogs don’t spend as much energy per hunt as a cheetah, but each kill is shared with the pack. A comparison of the two species found that cheetah hunts are more energetically expensive per attempt, but their higher individual kill rate produces a better ratio of energy gained per energy spent for a solitary animal. Wild dogs make up for lower individual kill rates by sharing kills across the pack, which ultimately distributes the energetic benefit.6Nature Communications. Energy cost and return for hunting in African wild dogs and cheetahs The takeaway is that success rate alone doesn’t capture whether a hunting strategy actually works for the predator’s survival. A 50 percent success rate with low-cost hunts and shared food can be better than an 80 percent rate that leaves the individual exhausted.
Praying Mantises and the Ambush Strike
Praying mantises hunt by waiting motionless and then lashing out with raptorial forelegs faster than the prey can react. The strike happens too quickly for the mantis itself to adjust based on visual feedback once it’s underway, so accuracy depends on the pre-strike targeting being precise. Research on the neural basis of this behavior has modeled how the mantis estimates distance using binocular stereopsis, with the peak strike response occurring at a distance of about 2 centimeters, and responsiveness falling off for targets nearer or farther than the optimal range.7PubMed Central. A computational model of stereoscopic prey capture in praying mantises
Interestingly, not every part of the mantis strike is rigid. Studies on juvenile ghost mantises found that the approach phase, when the mantis orients and positions itself, is more variable than the final sweep of the forelegs. Some kinematic traits, like the motion of the coxa joint, adjust based on prey position, while the fast sweep stage is more stereotyped and essentially preprogrammed.8PubMed. Patterns of variation in feeding strike kinematics of juvenile ghost praying mantis (Phyllocrania paradoxa): are components of the strike stereotypic? This combination of flexibility in aiming and rigidity in execution allows mantises to keep success rates high within their narrow strike zone.9PubMed. Prey capture in the praying mantis Tenodera aridifolia sinensis: coordination of the capture sequence and strike movements
Mantis success rates in the wild are harder to pin down than dragonfly rates because mantises are ambush predators that may go long stretches without encountering prey. When the prey is in the right position and range, success is very high. But if you counted all the hours of sitting still and waiting as part of the “hunt,” the effective rate of food acquisition per unit time would look quite different from the per-strike success rate. This is a common issue with ambush predators across the animal kingdom.
Specialized Hunters With Unusual Tricks
Some predators owe their success to sensory or behavioral abilities that border on strange. Pit vipers, for example, can hunt in complete darkness using infrared-sensing pit organs on their faces. Experiments on short-tailed pit vipers showed that when their eyes were covered, the snakes still launched strikes preferentially at targets with positive thermal contrast (warmer than background). Under no-thermal-contrast conditions, failure rates climbed sharply, with about half of strikes missing when there was no temperature difference to guide the attack.10Journal of Experimental Biology. The thermal background determines how the infrared and visual systems interact in pit vipers In natural settings where warm prey stands out clearly against cooler surroundings, this heat-vision system substantially improves strike accuracy, especially at night.
Archerfish present a completely different kind of specialization. They hunt by spitting jets of water at insects perched on vegetation above the waterline, knocking them into the water to be eaten. This requires the fish to compensate for the optical distortion of refraction at the water’s surface, essentially solving a physics problem in real time. Research has shown that archerfish use motor adaptation, adjusting their spitting mechanics through experience, to correct for refraction rather than relying on an innate hard-wired aiming system.11eLife. Motor adaptation of the water jet in the archerfish Their hit rates improve with practice, making experienced archerfish considerably more accurate than novices.
The Microscopic Predators Nobody Thinks About
If you’re willing to look beyond animals visible to the naked eye, some of the most efficient predators on Earth are single-celled organisms. Didinium nasutum, a ciliate protist, is an obligate predator of Paramecium. When a hungry Didinium makes accidental contact with a Paramecium, it instantly discharges two types of extrusive organelles from its proboscis. One type attaches to the surface of the prey and the other penetrates it, remaining anchored in the Didinium‘s body like a harpoon line. The prey is then drawn in and engulfed whole.12The Journal of Protozoology. Capture and Ingestion of Paramecium by Didinium nasutum
Because the discharge is triggered by physical contact and happens essentially instantaneously, the prey has no escape window once contact occurs. In a well-stocked laboratory culture, Didinium will consume every Paramecium available and then starve, a classic boom-and-bust predator-prey cycle that ecology textbooks have used for decades. The “hunting success rate” in this scenario is functionally 100 percent on contact, though the organism still has to find its prey in the first place, which involves random swimming. Whether this counts as “the highest hunting success rate” depends entirely on whether you’re willing to include organisms that most people wouldn’t call animals. Ciliates are protists, not animals in the strict taxonomic sense, but they’re often included in popular discussions of predation.
How Prey Escape Tactics Push Success Rates Down
The reason large predators have such low success rates compared to dragonflies and porpoises isn’t just that their prey is bigger. Prey species have evolved sophisticated counter-strategies that specifically exploit predator weaknesses. Schooling fish, flocking birds, and herding mammals all use collective behavior to confuse and evade predators. Modeling work on collective escape maneuvers has shown that prey groups achieve the best survival outcomes by maximizing their distance from the predator, creating a “fountain” evasion pattern where animals peel outward from the predator’s path. The effectiveness of the predator’s attack strategy and the prey’s avoidance are in direct conflict, with each side’s optimal strategy constraining the other.13PubMed Central. Collective anti-predator escape manoeuvres through optimal attack and avoidance strategies
This arms race is ongoing. Prey that are too easy to catch don’t survive to reproduce, so predators are constantly selecting for faster, more alert, more evasive prey. Predators that can’t keep up starve. The result is that success rates for most predator-prey pairings tend to settle into a range where the predator catches enough to survive and reproduce but not so much that the prey population collapses. Dragonflies and porpoises appear to operate above this typical range because their prey, small flying insects and tiny fish respectively, have relatively limited evasive capacity compared to the predator’s sensory and locomotor abilities.
Environmental Conditions and Fluctuating Success
Even highly efficient predators see their success rates shift with environmental conditions. Moonlight is one factor that reshapes the nightly dynamic between predators and prey. In a study of ocelots and their prey in northern Argentina, researchers found that several prey species, including opossums, rabbits, and deer, were actually more active on brighter moonlit nights. The relationship between prey activity and moon illumination was strong enough to be detected across multiple statistical tests.14Mammalian Biology. Relationship between moonlight and nightly activity patterns of the ocelot (Leopardus pardalis) and some of its prey species in Formosa, Northern Argentina
This creates a complex tradeoff. More moonlight means prey are more visible to the predator, which could increase hunting success. But the prey seem to know they’re more visible too, potentially altering their vigilance or where they forage. For ambush predators that depend on concealment, bright nights could actually be worse. For pursuit predators that need to see their quarry, bright nights might help. The upshot is that hunting success rates aren’t fixed characteristics of a species; they fluctuate with season, weather, habitat, prey availability, and even the phase of the moon. Any single number attached to a species represents an average across wildly variable conditions.
What “Best Hunter” Actually Means
If you define the best hunter as the one that catches its target the highest percentage of the time, the dragonfly is the standard answer, and the evidence for success rates around 95 percent is robust enough to have persisted across decades of research. Harbor porpoises are a close second in the measured world, exceeding 90 percent but on very small, easy-to-catch prey.2PubMed. Ultra-High Foraging Rates of Harbor Porpoises Make Them Vulnerable to Anthropogenic Disturbance Black-footed cats, various species of shrike, and some species of owl are also frequently cited with success rates above 60 percent, though the data for these species is thinner.
But raw success rate isn’t the whole story, and most ecologists would be uncomfortable calling it the definitive measure of hunting prowess. A predator’s effectiveness is really about whether its hunting strategy keeps it alive and reproducing, which involves the energetic cost per hunt, the caloric payoff per kill, the risk of injury, and the time investment. Cheetahs and African wild dogs illustrate this perfectly: the cheetah has a higher individual kill rate, but the wild dog’s cooperative strategy distributes cost and benefit in a way that supports pack survival.6Nature Communications. Energy cost and return for hunting in African wild dogs and cheetahs A white shark might succeed in only a fraction of its ambush attacks on seals, but one successful kill delivers enough calories for days. A dragonfly succeeds 95 percent of the time but needs to catch hundreds of mosquitoes a day. Both strategies work; neither is inherently superior in an ecological sense.
The real fascination of hunting success rates lies not in crowning a winner but in what the numbers reveal about the relationship between predator and prey. Every success rate is a snapshot of an evolutionary negotiation: how fast can you run versus how fast can I chase, how well can you hide versus how well can I see, how quickly can you react versus how quickly I can strike. The dragonfly’s 95 percent tells us that small flying insects have simply never evolved a good enough escape from a predator with 360-degree vision, four independently controlled wings, and neural processing tuned specifically to interception geometry. The lion’s 25 percent tells us that large ungulates have had millions of years to get very, very good at not being eaten. Both numbers are products of the same process, just at different stages of the arms race.