© Ondrej Prosicky Elk A woodland forager and wetland grazer, the mighty elk is a major shaper of landscapes
© animalphotography.ch / Shutterstock Eurasian lynx A shy and elusive wild cat that plays a key role in the ecosystem as a top predator
© Shutterstock Eurasian wolf A vital top predator that can have a major impact on the landscape through influencing the behaviour of herbivores
© Vladimir Wrangel / Shutterstock European Sturgeon A fish that evolved with the dinosaurs, this species is now extinct in Britain and critically endangered in Europe.
