Online resources to accompany the McCrea & Morgan text
Ibex, Capra ibex, photographed by A. Brambilla.
Straw-coloured fruit bat, Eidolon helvum, photographed by D. Hayman.
Rings for sea birds on the Isle of May, photographed by J. Lahoz-Monfort.
Male adder, Vipera berus, photographed by R. Griffiths.
Mating slow worms, Anguis fragilis , photographed by R. Griffiths.
Common lizard, Zootoca vivipara , photographed by R. Griffiths.
Great crested newt, Triturus cristatus, photographed by B. Lewis.