Pangolins are obligate myrmecophages — every one of the eight species eats almost nothing but ants and termites, year-round, for their entire lives. But "eating ants and termites" is not a fixed activity. Insect colonies themselves respond dramatically to rainfall, temperature, and soil moisture, and a pangolin's nightly foraging success rises and falls with those same cycles. Understanding how pangolin diets shift between wet and dry seasons reveals just how tightly this animal's survival is bound to the insect ecology beneath its feet.
Why Season Matters for an Insect Specialist
Unlike a generalist omnivore that can switch to fruit, small vertebrates, or carrion when a preferred food becomes scarce, a pangolin has almost no dietary flexibility. This makes prey availability, not prey preference, the dominant factor shaping its foraging behaviour across the year. Ants and termites are ectothermic and highly sensitive to temperature and moisture — colony activity at the soil surface can vary by an order of magnitude between a warm, humid night after rain and a cold, dry night in the depths of a southern African winter.
For a ground pangolin (Smutsia temminckii) in South Africa's Highveld or Lowveld, this seasonal swing is not a minor inconvenience. Foraging efficiency, energy reserves, and even breeding timing are all downstream of how easily the animal can locate active insect colonies on a given night.
Wet Season Foraging: Abundance and Ant Dominance
During the wet season (roughly October to March across much of southern Africa), rainfall softens soil, raises humidity, and triggers a surge in ant colony surface activity. Many ant species intensify foraging trail activity, nuptial flights, and nest expansion during and immediately after rain events, when the softened ground also makes excavation easier for the pangolin itself.
Field observations and stomach content studies of ground pangolins consistently show a higher proportion of ants relative to termites during the wet months. This aligns with the broader pattern documented in comparative studies of African ant-eating specialists: warm, moist conditions favour ants, which tend to nest closer to the surface and forage more visibly than termites during these periods.
The wet season also tends to be the period of highest overall prey biomass availability, and pangolins appear to capitalise on this by increasing nightly foraging distances and visiting a larger number of separate colonies per outing, rather than lingering at any single nest — a strategy that limits exposure to any one colony's chemical defence response while maximising total intake.
Dry Season Foraging: The Termite Fallback
As the dry season sets in (roughly April to September), surface ant activity declines sharply. Cooler temperatures slow ant metabolism and foraging drive, and many ant colonies retreat deeper underground or reduce surface trail activity to conserve moisture. This is where termites become disproportionately important.
Termite mounds, particularly those built by Macrotermes and related genera common across the African ground pangolin's range, function as engineered microclimates. The mound structure buffers internal temperature and humidity against external swings, meaning termite colonies inside a mature mound remain active and accessible even when surface conditions are cold and dry. For a pangolin, this makes termite mounds a comparatively dependable dry-season food source at a time when ant nests have gone quiet.
Digging into a mature termite mound is also more energetically costly than following an ant trail on soft wet-season soil — dry-season mound walls harden further as moisture drops, meaning pangolins must expend more digging effort per successful feeding bout even as overall prey availability falls. This combination of higher effort and lower yield makes the dry season the most energetically challenging period of the annual cycle for ground pangolins.
Behavioural Adjustments Across the Seasons
Foraging Duration and Timing
Ground pangolins are primarily nocturnal, but seasonal cold can push some individuals toward more crepuscular or even partial daytime activity during the coldest winter weeks, when nighttime temperatures fall low enough to suppress both pangolin and insect activity simultaneously. Extending the active window into cooler dawn or dusk periods, when ambient temperature is moderate but insect activity has not yet dropped to its nighttime minimum, appears to be one behavioural compensation for reduced foraging efficiency.
Burrow Use and Torpor-Like Behaviour
During cold snaps, ground pangolins may spend longer consecutive periods denned in burrows, conserving energy rather than foraging on nights when insect activity would be too low to justify the energetic cost of searching. This is not true hibernation, but it reflects the same underlying logic: when the expected caloric return from foraging drops below the energetic cost of the search, staying denned becomes the better strategy.
Body Condition and Fat Reserves
Because pangolins cannot switch food sources, body condition tends to track the seasonal prey cycle closely. Individuals typically enter the dry season in better condition, built up during the wet-season abundance, and that reserve is drawn down as dry-season foraging becomes harder. This makes late dry season, just before the rains return, the period of greatest nutritional stress for many populations — and a period when animals may be more vulnerable to disease, predation, or the additional stress of snaring and poaching pressure.
Species and Regional Variation
Not all pangolin species experience the same seasonal pattern, because not all range countries have the same rainfall regime. Equatorial species such as the white-bellied pangolin and black-bellied pangolin, living in Central and West African rainforest with less pronounced dry seasons, likely experience a more muted version of this cycle than the strongly seasonal savanna and bushveld habitats used by the ground pangolin across South Africa, Botswana, and Zimbabwe. Asian species such as the Sunda pangolin and Chinese pangolin face their own monsoon-driven wet-dry cycles, with broadly comparable ant-versus-termite dynamics reported in regional field studies, though direct comparative data across all eight species remains limited.
Why This Matters for Conservation
Understanding seasonal diet shifts has practical value beyond natural history curiosity. Rehabilitation centres caring for confiscated or injured pangolins need to replicate seasonally appropriate feeding ratios to avoid nutritional stress during recovery. Habitat protection planning benefits from recognising that a landscape needs both ant-rich open ground and a healthy population of mature termite mounds to support pangolins through the full annual cycle — protecting one prey type without the other leaves a seasonal gap the animal cannot bridge. And release site selection for rehabilitated pangolins should ideally account for the balance of ant and termite resources available across both wet and dry seasons, not just at the time of release.
Seasonal Diet Pattern Summary
| Factor | Wet Season | Dry Season |
|---|---|---|
| Dominant prey | Ants (surface trails abundant) | Termites (mound-buffered activity) |
| Soil condition | Soft, easier to excavate | Hardened, harder to excavate |
| Foraging effort | Lower per successful raid | Higher per successful raid |
| Body condition trend | Building reserves | Drawing down reserves |
| Activity pattern | Standard nocturnal | Extended dawn/dusk activity possible |
FAQ: Pangolin Seasonal Diet
Do pangolins eat different food in different seasons?
They stay ant and termite specialists year-round, but the proportion of ants versus termites, and total intake volume, shifts substantially between wet and dry seasons as insect colony activity changes.
Is the dry season harder for pangolins to find food?
Generally yes. Surface ant activity drops in cold, dry conditions, pushing pangolins toward termites in insulated mounds. Ground pangolins often increase foraging effort and denning time during the coldest, driest months.
How much do pangolins eat per night?
Up to around 200,000 ants or termites during peak season, roughly 200 to 300 grams of insects, though this drops during lean dry-season periods of lower prey density.
Conclusion
A pangolin's diet may look monotonous from the outside — always ants, always termites — but underneath that simplicity is a foraging strategy in constant negotiation with the seasons. Wet-season abundance and dry-season scarcity shape everything from nightly travel distance to burrow use to body condition, and ultimately to survival. Recognising this seasonal dependency is essential for anyone managing pangolin habitat, running a rehabilitation programme, or trying to understand why this famously elusive animal behaves so differently in July than it does in January.