John Cancalosi / American toads (Anaxyrus americanus), several males competing to mate with female, Maryland, USA, April.

MYN / Piotr Naskrecki / American toad (Bufo americanus) portrait, Concord, Massachusetts, USA, June. meetyourneighbours.net project

Doug Wechsler / American toad (Bufo americanus) crossing road at night in front of car headlights, Philadelphia, Pennsylvania, USA, March

John Cancalosi / American toad (Bufo americanus) male calling to attract female, New York, USA

John Cancalosi / American toad (Bufo americanus) male calling to attract female, New York, USA

Doug Wechsler / American Toad {Bufo americanus} male calling, his vocal sac vibrations causing ripples in the water, Pennsylvania, USA

Scott Leslie / American Toad (Bufo americanus) calling in spring pond, West Stoney Lake, Nova Scotia, Canada. Sequence 1 of 2

John Cancalosi / American toads (Anaxyrus americanus), several males trying to mate with female, Maryland, USA, April.

John Cancalosi / American toads (Anaxyrus americanus), two males attempting to mate with female, Maryland, USA, April.

John Cancalosi / American toads (Anaxyrus americanus), males competing to mate with female, Maryland, USA, April.

Doug Wechsler / American toad tadpoles (Anaxyrus americanus) Philadelphia, Pennsylvania, USA, April.

Doug Wechsler / American toad tadpoles (Bufo americanus) eight days after hatching. Philadelphia, Pennsylvania, USA