Animal field guide
Flathead Catfish
Pylodictis olivaris
Flathead Catfish teaches Live Take by refusing the easy meal — alone among the big catfish, it will not touch what is already dead.
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Get AnimalDexFlathead Catfish at a glance
Fish · Native range keys: north_america · Relatively common
Known for: Broad flattened head with small eyes set high and, Projecting lower jaw, Mottled yellow-brown to olive body, Squared-off tail rather than the deep fork of other
Understand the animal
Understand the Flathead Catfish
Factual biology first: what this animal is like, where it lives, how it survives, and why those traits exist.
01
Introduction to Flathead Catfish
Flathead Catfish teaches Live Take by refusing the easy meal — alone among the big catfish, it will not touch what is already dead.
How to identify a Flathead Catfish
- Broad flattened head with small eyes set high and wide
- Projecting lower jaw, so the underbite is visible head-on
- Mottled yellow-brown to olive body, pale underneath
- Squared-off tail rather than the deep fork of other big catfish
- Large and heavy-bodied, to about 1.5 m and 55 kg
Why Flathead Catfish are interesting
- It is the one large North American catfish that hunts live prey almost exclusively and largely ignores carrion.
- Adults are solitary and hold a single lie — a log jam, undercut bank or hollow — returning to it after each night's hunt.
- Where it has been introduced outside the Mississippi basin it has emptied whole rivers of native fish.
- Anglers call it mudcat, shovelhead and appaloosa catfish depending on the state.
- Males clear a nest cavity and guard the eggs, fanning them until they hatch.
02
Adaptations and biological abilities
03
Why does Flathead Catfish behave this way?
- Broad flattened head with small eyes set high and wide
- Projecting lower jaw, so the underbite is visible head-on
- Mottled yellow-brown to olive body, pale underneath
- Squared-off tail rather than the deep fork of other big catfish
- Large and heavy-bodied, to about 1.5 m and 55 kg
Nocturnal. It spends the day motionless under cover and moves into shallower water to hunt after dark, which is why it is caught far more often at night.
04
Why Native range keys: north_america. Flathead Catfish live in the deep pools?
Habitat: Native range keys: north_america. Flathead Catfish live in the deep pools, log jams and undercut banks of large rivers, where Live Take works because structure gives an ambush hunter somewhere to wait that live prey must swim past.
Native range: Native range keys: north_america. Flathead Catfish live in the deep pools, log jams and undercut banks of large rivers, where Live Take works because structure gives an ambush hunter somewhere to wait that live prey must swim past.
Native range
Natural range, not this specific capture location.
Native range keys: north_america. Flathead Catfish live in the deep pools, log jams and undercut banks of large rivers, where Live Take works because structure gives an ambush hunter somewhere to wait that live prey must swim past.
05
Why this diet?
06
Activity, rest, and lifespan
Nocturnal. It spends the day motionless under cover and moves into shallower water to hunt after dark, which is why it is caught far more often at night.
Flathead Catfish can live more than 20 years, long enough for one fish to hold and defend the same deep-water lie season after season.
07
Flathead Catfish reproduction
The female lays her eggs in a cavity the male has cleared, and he stays to guard and fan the clutch. Fry shoal together in the shallows before dispersing to find lies of their own.
Males and females look alike, with males distinguishable mainly when guarding a nest. Both hunt the same way and hold the same kind of cover.
08
Predators, threats, and defense
Adults have almost no predators beyond people; young are taken by larger fish, wading birds and turtles. Their defence is depth, cover and locking sharp pectoral and dorsal spines outward.
09
Conservation and rarity
Rarity: Relatively common · 28/100. AnimalDex canonical rarity score: 28/100, maintained by the live indexed species profile.
- Observe from a respectful distance and avoid changing the animal's behavior.
- Do not block feeding, shelter, nesting, or travel routes.
- Use a live camera capture without handling or staging wildlife.
Ask AnimalDex
Ask AnimalDex about the Flathead Catfish
Ask about its biology, behavior, abilities, survival strategy, symbolism, or what its strategy can teach you. Answers stay grounded in this species page.
Anonymous: 3/day. Signed-in: 10/day. Pro: 30/day fair use.
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Where to find them
Where to find Flathead Catfish
To find Flathead Catfish in the wild, focus on the exact habitat patches that match its body design and daily behavior, not just the broad country where it exists. You usually do better by working one good piece of habitat inside native range keys: north_america. Flathead Catfish live in the deep pools, log jams and undercut banks of large rivers, where Live Take works because structure gives an ambush hunter somewhere to wait that live prey must swim past. than by covering too much ground.
- Quiet marsh edges, reedbeds, river bends, or shallow wetland margins
- Protected habitat blocks within native range keys: north_america. Flathead Catfish live in the deep pools, log jams and undercut banks of large rivers, where Live Take works because structure gives an ambush hunter somewhere to wait that live prey must swim past.
Animal field guide
Flathead Catfish
Flathead Catfish teaches Live Take by refusing the easy meal — alone among the big catfish, it will not touch what is already dead.
Native range
Natural range, not this capture location
Native range keys: north_america. Flathead Catfish live in the deep pools, log jams and undercut banks of large rivers, where Live Take works because structure gives an ambush hunter somewhere to wait that live prey must swim past.
Search near meAnimalDex stats
Dominance
58
Speed
34
Size
48
Intelligence
32
Rarity
28%
Total
200
Size scale
Scientific name
Pylodictis olivaris
Category
Fish
Habitat
Native range keys: north_america. Flathead Catfish live in the deep pools, log jams and undercut banks of large rivers, where Live Take works because structure gives an ambush hunter somewhere to wait that live prey must swim past.
Rarity
Relatively common · 28/100
Native range
Native range keys: north_america. Flathead Catfish live in the deep pools, log jams and undercut banks of large rivers, where Live Take works because structure gives an ambush hunter somewhere to wait that live prey must swim past.
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