Pacman Frog vs African Bullfrog: Key Differences
The Pacman frog is a South American horned frog (genus Ceratophrys) that reaches about 4.5 to 6.5 inches. The African bullfrog (Pyxicephalus adspersus) lives in southern and central Africa and is far bigger, with males of 8 to 10 inches and over 2 kg. The bullfrog also lives longer in captivity. Both are ambush predators with huge mouths, and both can bite.
Pacman frog and African bullfrog are often confused. Both are round, wide-mouthed ambush hunters that sit still and eat almost anything that fits.
They are not close relatives, though. This guide compares them using zoo, university and vet sources, and it notes where those sources disagree.
How this was made: prepared with AI assistance and checked against the sources listed at the end. Images are AI-generated illustrations, not photographs of real animals or products.
Key Takeaways
- Pacman frogs are South American; African bullfrogs are African.
- Bullfrog males are much bigger than Pacman frogs.
- African bullfrogs live longer in captivity.
- Both sit buried and ambush prey.
- Both can bite, so use tongs for feeding.
- Sources give different lifespans, so we show ranges.
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Where each frog lives
Adventure Aquarium says the ornate horned frog, a common Pacman frog, lives in Argentina, Brazil and Uruguay. It adds that the IUCN lists it as Near Threatened. “Pacman frog” is a pet-trade name that covers several horned frog species.
The African bullfrog lives in central and southern Africa, in arid and semi-arid habitats, says Lafeber Veterinary. Animal Diversity Web lists the IUCN status as Least Concern.
Size and lifespan
The bullfrog is the larger frog by a wide margin. Lafeber says males reach 20 to 25 cm and often weigh over 2 kg, while females are about half the male size. Adventure Aquarium gives 4.5 to 6.5 inches and up to 1 lb for the ornate horned frog.
Lifespan figures vary. Adventure Aquarium gives 6 to 7 years for the horned frog. For the bullfrog, Animal Diversity Web cites 16.2 years in captivity, VetVerified says 20 to 30 years, and Lafeber says up to 20 years is common.
Side-by-side comparison
The table uses the figures named in each source.
| Trait | Pacman frog (ornate horned frog) | African bullfrog |
|---|---|---|
| Continent | South America | Africa |
| Adult size | 4.5 to 6.5 in, up to 1 lb | Males 8 to 10 in, over 2 kg |
| Captive lifespan | 6 to 7 years | 16.2 to 30 years, by source |
| IUCN status | Near Threatened | Least Concern |
| Hunting style | Buries in leaf litter and waits | Sits partly buried and ambushes |
| Adult housing | 15 to 20 gallon tank | 20 to 30 gallon tank, by source |
Hunting and diet
Both frogs are ambush predators. Adventure Aquarium says the horned frog buries itself in leaf litter and waits. Oregon Zoo says the bullfrog sits for hours, partly buried with only its nose showing.
Diets overlap. The horned frog eats large insects, lizards, mice and other horned frogs. The bullfrog eats insects, other frogs, reptiles, small mammals and birds. Cannibalism is documented in bullfrogs by Animal Diversity Web.
Care differences in brief
Housing needs differ because of size. Reptiles Magazine says one adult horned frog or a pair fits in a 15 to 20 gallon horizontal tank. Lafeber says one adult bullfrog can live in a 20 gallon long tank, and VetVerified recommends at least 30 gallons.
Feeding rates differ too. Reptiles Magazine says adult horned frogs eat about once every two weeks, while VetVerified feeds adult bullfrogs every 3 to 4 days. For care steps, see our guides to Pacman frog care and pixie frog care.
Which one is more dangerous?
Lafeber says adult bullfrogs can inflict a painful bite. Reptiles Magazine marks the horned frog as not dangerous, but we found no bite data for either frog in our sources.
Treat both with caution. Use tongs, avoid handling and wash your hands afterward. Read more about the Pacman frog and the African bullfrog’s aggression.
Frequently Asked Questions
Is a Pacman frog the same as an African bullfrog?
No. Pacman frog is a name for South American horned frogs. The African bullfrog is a different family from Africa.
Which is bigger, a Pacman frog or an African bullfrog?
The African bullfrog. Males reach 20 to 25 cm and over 2 kg, per Lafeber. The ornate horned frog reaches 4.5 to 6.5 inches.
Which frog lives longer?
The African bullfrog. Sources give 16 to 30 years in captivity, while Adventure Aquarium gives 6 to 7 years for the horned frog.
Do both frogs bite?
Lafeber says adult bullfrogs can bite painfully. We found no bite data for horned frogs in our sources, so be careful with both.
Which is easier for a beginner?
Reptiles Magazine lists the horned frog at beginner level. The bullfrog is larger, longer lived and a bigger commitment.
Can they live together?
No source we reviewed supports housing them together. Lafeber says to house adult bullfrogs separately, and both species eat other frogs.
Bottom Line
The two frogs look alike at a glance, but they differ in origin, size and lifespan. The bullfrog is the bigger commitment.
Check the numbers above before you choose, and read a care guide first.
Sources
- Adventure Aquarium: Argentine Horned Frog, accessed Size, range and status
- Reptiles Magazine: Argentine Horned Frog, accessed Housing and feeding
- Lafeber Veterinary: Giant African Bullfrog, accessed Size, lifespan and bite
- Animal Diversity Web: Pyxicephalus adspersus, accessed Lifespan, diet and status
- Oregon Zoo: African bullfrog, accessed Behaviour
- VetVerified: Keeping African Bullfrogs, accessed Housing and feeding
- CDC: Reptiles and amphibians, accessed Salmonella advice
