Bottlenose dolphins in British waters are the biggest of their kind – they need to be able to cope with our chilly waters! They are very sociable and will happily swim alongside boats, providing…

The blue-tailed damselfly does, indeed, have a blue tail. It is one of our most common species and frequents gardens - try digging a wildlife pond to attract dragonflies and damselflies.

The Purple hairstreak is an elusive butterfly with a brilliant purple sheen. It is entirely reliant on oak trees and can be spotted chasing around the treetops in woodlands and parks.

A tall plant, purple-loosestrife can form dense stands of bright purple flower spikes in wet habitats like reedbeds, fens and marshes.

The male purple emperor is a stunning butterfly with a brilliant purple sheen. Look for it feeding around the treetops in woodlands, or on damp ground, animal droppings or even carrion in the…