American Toad (Anaxyrus americanus)
Order Anura, Family Bufonidae, Genus Anaxyrus. The Bufonidae family is characterized by toothless jaws, a horizontal pupil, and the presence of parotoid glands.
Species
American Toad (Anaxyrus americanus)
Family
Order Anura, Family Bufonidae, Genus Anaxyrus. The Bufonidae family is characterized by toothless jaws, a horizontal pupil, and the presence of parotoid glands.
Size
Adult SVL ranges from 5 to 11 cm (2 to 4.5 inches). Females are generally significantly larger than males. Metamorphs are tiny, often less than 1 cm upon leaving the water.
Conservation
IUCN Status: Least Concern. Populations are generally stable and and widespread, though local declines occur due to habitat fragmentation and pollution.
Description
The quintessential 'garden toad,' this species is a familiar sight to many. With its expressive golden eyes and bumpy skin, it is a master of camouflage against leaf litter, becoming a silent guardian of gardens by consuming pests.
Key Features
One or two warts per dark spot; parotoid glands spaced away from the cranial crests; speckled belly; horizontal pupils.
Physical Description
Robust and chunky body shape with short limbs. The head is broad with prominent cranial crests and large, kidney-shaped parotoid glands behind the eyes. The limbs are sturdy, adapted for walking and hopping rather than long-distance jumping.
Skin Texture & Coloration
Densely granular and warty skin. Coloration is highly variable, ranging from tan, brown, or olive to reddish-brown. The dorsum typically features dark spots, each containing 1 to 2 large warts. The belly is usually light-colored with dark speckling.
Distinguishing Features
Crucially, the parotoid glands are either separated from the cranial crests or connected to them by a short spur. Each dark dorsal spot contains only 1 or 2 warts, unlike the Southern or Fowler's Toads which have more.
Habitat
Extremely versatile; found in forests, grasslands, suburban gardens, and agricultural fields. They require semi-permanent freshwater ponds or shallow pools for breeding.
Geographic Range
Common across North America, from eastern Canada down to the southeastern United States, and west into the Great Plains.
Behavior
Primarily nocturnal but often active during the day in damp weather. They are slow-moving, using short hops. When threatened, they inflate their bodies to appear larger and may release secretions.
Diet & Feeding
Generalist carnivore eating vast quantities of insects, spiders, slugs, and earthworms. They use a flicking, sticky tongue to capture prey in a sit-and-wait ambush style.
Reproduction
Explosive breeders in early spring. Males form large choruses. Amplexus is axillary. They lay eggs in long, gelatinous double strings that can contain up to 20,000 eggs.
Vocalizations
A long, high-pitched musical trill that can last 6 to 30 seconds. To a human listener, it sounds like a sustained, pleasant 'bu-u-u-u-u-u-r-r-r'.
Life Cycle
Eggs hatch in 3-12 days; tadpoles are small and black. Metamorphosis occurs in 40-70 days. Juveniles reach sexual maturity in 2-3 years and can live up to 10 years in the wild.
Conservation Status
IUCN Status: Least Concern. Populations are generally stable and and widespread, though local declines occur due to habitat fragmentation and pollution.
Toxicity & Defense
Parotoid glands secrete bufotoxins which are mildly irritating to human skin but can be dangerous or lethal to smaller pets if the toad is swallowed.
Ecological Role
Important secondary consumer that controls insect and invertebrate populations; serves as a vital food source for hognose snakes and various birds of prey.
Similar Species
Fowler's Toad (Anaxyrus fowleri) has 3+ warts per spot; Southern Toad (Anaxyrus terrestris) has higher, knob-like cranial crests.
Observation Tips
Look near porch lights at night where they congregate to eat attracted insects. Listen for their trilling choruses near ponds on warm, rainy spring nights.
Handling & Safety
Safe to handle briefly with wet hands, but always wash hands immediately after to avoid eye irritation from skin secretions. Do not allow pets to mouth or eat them.
Seasonal Activity
Active from spring through autumn. They hibernate (brumate) during winter by burrowing deep into the soil below the frost line.
Cultural Significance
Commonly featured in North American folklore and literature as a symbol of the garden; often mistakenly associated with giving people warts (which is a myth).
Interesting Facts
The American Toad can change its color slightly based on temperature and humidity. They have been known to live for over 30 years in protected captive environments.