Frogs and amphibians Biodiversity sketches in watercolor
Text and watercolors by Frits Ahlefeldt
Researching frogs today – Frogs are among the most endangered species on the planet – The threats they face from habitat-loss, to pollution, to invasive species, to climate change… all have one thing in common – But we can play a different role, if we change our ways and habits
Moor frog watercolor 
Edible Frog Watercolor 
Common Spade Toad Watercolor by Frits Ahlefeldt 
Natterjack Toad Sitting 
Green Toad Side view 
Fire bellied Toad 
European Tree Frog
This group of frogs can all still be found in Europe
