John Waters / Underwater view of a group of Common toads (Bufo bufo) in a mating ball in a pond, Priddy, Somerset, England, UK, March.

John Waters / Underwater view of a group of Common toads (Bufo bufo) spawning in a pond, some in amplexus, with spawn, Priddy, Somerset, England, UK, March.

John Waters / Group of Common toads (Bufo bufo) in a mating ball in a pond, Priddy, Somerset, England, UK, March.

John Waters / Group of Common toads (Bufo bufo) in a mating ball in a pond, Priddy, Somerset, England, UK, March.

Ingo Arndt / Common toad (Bufo bufo) eggs close up.

Ingo Arndt / Natterjack toads, mating pair with strings of toad spawn {Bufo calamita} Germany

Ingo Arndt / Natterjack toad male calling {Bufo calamita} vocal sac inflated, Germany

Ingo Arndt / Natterjack toad {Bufo calamita} portrait Germany

Ingo Arndt / Natterjack toad {Bufo calamita} Germany

Ingo Arndt / Natterjack toad calling, vocal sac inflated {Bufo calamita} Germany

Sam Hobson / Common toads (Bufo bufo) in amplexus, Bristol, UK, March.

Laurent Geslin / European toad (Bufo bufo) crossing a road at night with car headlights