American toad
The American toad is a common toad found across the eastern half of Canada and the United States. It lives in forests, grasslands and gardens, and it breeds in shallow ponds and pools. It matters because it eats many insects and other small creatures, and its skin releases a substance that can irritate eyes and harm small animals such as dogs.1

Com reconèixer-lo
- Adults are usually 5 to 9 cm long.1
- Skin colour varies from yellow to brown to black, and can be solid or speckled. It changes with habitat colours, humidity, stress and temperature.1
- Spots on the back contain only one or two warts, and the lower legs have enlarged warts.1
- The parotoid glands are the same colour as the surrounding skin.1
- Breeding males give a high trill lasting 6 to 30 seconds that sounds like a ringing telephone.1
Sovint es confon amb: Fowler's toad, Woodhouse's toad, the Canadian toad, the southern toad and the Gulf Coast toad can look similar. Fowler's toad never has a spotted belly, and its cranial crests touch the parotoid glands. The American toad's crests almost never touch the glands. The Canadian toad's crests join to form a raised bump, which the American toad's do not. The southern toad's crests form two distinct knobs.1
Poder tòxic
La seva pell és tòxica. És perillós tocar-lo, llepar-lo o menjar-se'l.
Què fan les seves toxines?
The American toad does not inject venom. Its parotoid glands secrete bufotoxin, a poisonous substance that makes the toad unpalatable to predators. It is a mild poison compared with other poisonous toads and frogs, but it can irritate human eyes and mucous membranes and is dangerous to smaller animals such as dogs when swallowed.1
Com de perillós és per a les persones?
Perill per a les persones: LleuCom una picada d'abella o menys. Pràcticament inofensiu per a les persones.Bufotoxin is a mild poison. It can irritate human eyes and mucous membranes, and it is dangerous to smaller animals, such as dogs, if they swallow it.1
Què fa quan té por?
When threatened, the toad releases bufotoxin from its parotoid glands, which makes it unpleasant to eat.1
Si algú l'ha tocat o se l'ha menjat
- Si algú n'ha tocat un: renta-li bé les mans i que no es toqui els ulls ni la boca. Si un nen o una mascota n'ha llepat o menjat un: truca al centre de toxicologia o al número d'emergències.
Truca sempre primer al número d'emergències (112, 000, 911). Això són pautes generals de primers auxilis, no consells mèdics. Primers auxilis bàsics
Estigues segur
- No toquis, atrapis ni molestis mai un animal salvatge, encara que sigui petit i encara que sembli adormit o mort.
- Deixa-li espai. Si en trobes un, mantén la calma, recula a poc a poc i deixa que segueixi el seu camí.
- Si l'has tocat o te l'has menjat: no et freguis els ulls ni la boca, renta't les mans i busca ajuda mèdica.
No va a per tu. Les seves toxines només hi són perquè ningú no se'l mengi. Més sobre com estar segur
Que gran és?
Quant fa de llarg?
fa de llarg com 3 peces de construcció de joguina en fila
podria recórrer 100 metres en 180 segons (l'humà més ràpid necessita 9,6)Que gran és American toad comparat amb TU?
Només càlculs al teu navegador. No es desa ni s'envia res enlloc.
Com de ràpid va?
Dades
Some American toads have lived for over 30 years, and one female was reported to be living healthily into her late 30s.1
Toads avoid mating with their siblings. Males' calls seem to help females recognise their close relatives.1
Toad tadpoles produce toxic chemicals in their skin that discourage some predators. Most fish learn quickly to avoid eating them.1
Their skin colour can change with their surroundings, humidity, stress and temperature.1
Tadpoles swim in very shallow water, often among thick grass, and gather in schools during the day to reduce predation.1
Toadlets often leave the water together in large groups and migrate to shaded forest areas near where they were bred.1
Per a experts en verins
- Nom científic
- Anaxyrus americanus
- Grup
- Granotes punta de fletxa, gripaus i tritons
- Família
- Bufonidae2
- Ordre
- Anura
- Continents
- Amèrica del Nord
- Cries
- Females lay two long ropes containing 2,000 to 20,000 small black eggs, each 1 to 2 mm across, surrounded by jelly. The eggs hatch into tadpoles in 3 to 12 days.1
- Esperança de vida
- uns 30 anys1
- Perill per a les persones
- 1 / 5: Lleu3
D'on surten les dades
- American toad (Wikipedia (CC BY-SA 4.0))
- Anaxyrus americanus (iNaturalist): noms i classificació.
- Venom Wiki: el nivell de perill, la mida típica i la velocitat estimada són nostres. Mira com els calculem: Com valorem el perill.
Cada dada d'aquesta pàgina té un número que porta a la seva font. Si ens hem equivocat en alguna cosa, perdona, som fans dels animals, no una revista científica. Escriu-nos a [email protected] i ho arreglarem.
Toxines a la pell
