American Toad (Anaxyrus americanus)
Order Anura, Family Bufonidae, Genus Anaxyrus. Members of this family are 'true toads', characterized by dry, warty skin and prominent parotoid glands.
Species
American Toad (Anaxyrus americanus)
Family
Order Anura, Family Bufonidae, Genus Anaxyrus. Members of this family are 'true toads', characterized by dry, warty skin and prominent parotoid glands.
Size
Adults typically range from 2 to 3.5 inches (51–90 mm) SVL. Females are generally larger than males. Metamorphs are tiny, often the size of a fingernail (0.3–0.5 inches).
Conservation
IUCN Status: Least Concern. Population is stable, though they are susceptible to habitat fragmentation, pesticides, and the chytrid fungus.
Description
The quintessential 'garden toad,' this species is a master of camouflage. With its rugged, textured skin and calm demeanor, it is a sturdy inhabitant of the forest floor and suburban lawns alike.
Key Features
Look for the dry warty skin, short legs, prominent parotoid glands, and 1-2 warts per dark spot on the back.
Physical Description
A robust, squat amphibian with a short snout and powerful hind limbs suited for hopping rather than long leaps. It features prominent cranial crests on the head and large, kidney-shaped parotoid glands behind the eyes.
Skin Texture & Coloration
The skin is dry and heavily warty (tuberculate). Dorsal coloration ranges from brown and grey to olive, often with darker spots. This specific specimen exhibits a very dark, melanistic-leaning or wet-darkened grey/black appearance. A light mid-dorsal stripe is often present.
Distinguishing Features
Identified by having only one or two large warts per dark dorsal spot. The cranial crests behind the eyes are either separated from the parotoid glands or connected to them by a short spur.
Habitat
Highly adaptable; found in forests, grasslands, and suburban backyards. They require semi-permanent ponds or shallow pools for breeding but are primarily terrestrial as adults.
Geographic Range
Native to eastern North America, ranging from central Canada through the eastern United States down to the northern parts of the Gulf States.
Behavior
Primarily nocturnal but often active during the day in damp weather. They are solitary and use a 'hopping' locomotion. When threatened, they inflate their bodies to appear larger.
Diet & Feeding
Generalist carnivore eating beetles, snails, slugs, ants, and earthworms. They use a flicking sticky tongue to capture prey in a sit-and-wait ambush style.
Reproduction
Explosive breeders in spring triggered by warm rains. Amplexus is axillary. Females lay long, double-stranded strings of up to 4,000–8,000 black eggs in shallow water.
Vocalizations
The advertisement call is a long, high-pitched musical trill lasting 6 to 30 seconds. To a human, it sounds like a pleasant, steady whistle with a slight vibrato.
Life Cycle
Eggs hatch in 3–12 days. Tadpoles are small and black, metamorphosing into toadlets in 5–10 weeks. They reach sexual maturity in 2–3 years and can live nearly a decade in the wild.
Conservation Status
IUCN Status: Least Concern. Population is stable, though they are susceptible to habitat fragmentation, pesticides, and the chytrid fungus.
Toxicity & Defense
Possesses parotoid glands that secrete bufotoxins (milky white alkaloid substances). These are irritating to mucous membranes and can be dangerous if ingested by small pets.
Ecological Role
Vital pest controllers, consuming massive quantities of garden insects. They serve as a primary food source for hognose snakes and raccoons.
Similar Species
Fowler's Toad (Anaxyrus fowleri) has three or more warts per dark spot and cranial crests that touch the parotoid glands. Woodhouse's Toad has more prominent crests.
Observation Tips
Best found on humid nights near porch lights (which attract their insect prey) or in shallow ponds during April and May when chorusing is at its peak.
Handling & Safety
Safe to watch, but wash hands after handling due to skin secretions. Do not touch eyes after handling. Ensure hands are wet to protect the toad's permeable skin.
Seasonal Activity
Active from early spring through autumn. They hibernate (brumate) during winter by burrowing below the frost line in loose soil.
Cultural Significance
Frequently appearing in folklore and literature (like 'The Wind in the Willows'), they are often associated with garden luck and transition between water and land.
Interesting Facts
Toads do not cause warts in humans; this is a myth. They can live over 30 years in captivity, far exceeding their typical wild lifespan.