Florida Cottonmouth

agkistrodon conanti

The Florida Cottonmouth (Agkistrodon conanti) is a heavy-bodied, venomous pit viper native to the wetlands, swamps, and waterways of the southeastern United States. As a semi-aquatic species, it plays a vital role in regulating populations of fish, amphibians, and rodents in its ecosystems. Often misunderstood and feared due to its potent hemotoxic venom, the cottonmouth is actually a reclusive reptile that prefers flight over fight, using dramatic defensive postures to ward off potential threats before resorting to a strike. This fascinating snake is incredibly well-adapted to its aquatic lifestyle, utilizing heat-sensing pits located between its eyes and nostrils to detect warm-blooded prey even in pitch darkness. Spotting a Florida Cottonmouth basking on a sunny log or swimming buoyantly across a quiet marsh is a thrilling highlight for any herpetology enthusiast exploring the natural wonders of the American South. To easily track and identify Florida Cottonmouth on your next adventure, download the Snappit app.

Habitat: Found in slow-moving aquatic environments like swamps, marshes, retention ponds, and flooded forests across Florida and nearby coastal plains.

Appearance

The Florida Cottonmouth is characterized by its thick, muscular dark brown, olive, or black body, often patterned with dark crossbands that fade to solid dark brown or black in older individuals. It has a distinct, blocky, wedge-shaped head with a dark stripe running from the eye down the side of the head, bordered by white or cream-colored lines. A key identifier is the white, cotton-like lining of its mouth, which it displays when threatened. Juveniles look strikingly different, sporting bold, reddish-brown bands and a bright sulfur-yellow tail tip used for caudal luring.

KingdomAnimaliaPhylumChordataClassReptiliaOrderSquamataFamilyViperidaeGenusAgkistrodon

Florida Cottonmouth

Interesting facts

Their prominent, white mouth-gaping display is a defensive bluff intended to scare away predators; they will usually only bite as a last resort if stepped on or handled.

They are equipped with hemotoxic venom, which breaks down blood cells and tissue, helping them partially digest their prey from the inside out before even swallowing it.

When swimming, Florida Cottonmouths keep their entire bodies buoyant and afloat on the surface of the water, whereas non-venomous water snakes typically swim with only their heads above the water.

Special abilities

Uses specialized loreal pits located between the eyes and nostrils to detect minute temperature differences, allowing it to strike accurately in total darkness.

When threatened, it coils its body and opens its mouth wide, exposing the stark white flesh inside to warn potential predators of its lethal bite.

Juveniles twitch their bright yellow-tipped tails to mimic an insect or worm, enticing frogs, lizards, and small fish to come within striking distance.

Measurements & details

Weight: 0.455+ kg
Top Speed: 5 km/h

Diet & Feeding

An opportunistic generalist carnivore that preys on a wide variety of aquatic, semi-aquatic, and terrestrial animals.

Primary Foods

Fish
Frogs
Small rodents
Baby alligators
Other snakes

Foraging Method

Ambush Predatorr Active Hunting Mix (often Categorised As Ambush Hunting But Will Forage Actively In Shallows During Warm Nights.) (wait, The Schema Specifies A Single String Or Null, So Let's Stick To 'ambush' Or 'foraging'. 'ambush' Is Most Accurate.)

Ecological connections

eaten by

Eastern Kingsnake

Lampropeltis getula

Kingsnakes are ophiophagous predators that are highly immune to viper venom and actively hunt and eat cottonmouths.

eaten by

American Alligator

Alligator mississippiensis

Young cottonmouths represent prey for adult alligators, while mature snakes may occasionally consume very small hatchling alligators.

hunts

Southern Leopard Frog

Lithobates sphenocephalus

These common wetland frogs are a key food source, especially for younger cottonmouths hunting in shallow waters.

Traits

No trait badges are assigned for this object yet.

Also known as

No aliases listed yet.

Collections

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Safety

Danger

1/5 · Very low

No special safety notes yet.

Frequently Asked Questions

How to identify Florida Cottonmouth?

The easiest way to identify Florida Cottonmouth is to use the Snappit nature identifier app.

How much does Florida Cottonmouth weigh?

0.455+ kg

How fast can Florida Cottonmouth move?

5 km/h

What does Florida Cottonmouth eat?

An opportunistic generalist carnivore that preys on a wide variety of aquatic, semi-aquatic, and terrestrial animals.

Where is Florida Cottonmouth usually found?

Found in slow-moving aquatic environments like swamps, marshes, retention ponds, and flooded forests across Florida and nearby coastal plains.

How does Florida Cottonmouth hunt?

Ambush Predatorr Active Hunting Mix (often Categorised As Ambush Hunting But Will Forage Actively In Shallows During Warm Nights.) (wait, The Schema Specifies A Single String Or Null, So Let's Stick To 'ambush' Or 'foraging'. 'ambush' Is Most Accurate.)