INDEX

Late arrivals The UK's spring butterflies have finally appeared, weeks later than usual.

A three-month long study to determine the puffin population on the Farne Islands in Northumberland gets under way. BBC News

An Asian insect is destroying native species around the world by unleashing a lethal biological cocktail. BBC News

Cold spring

Is the delay in the growing season for plants and crops a bad thing?

Arctic frontline

Semi-nomadic lifestyle of the Sami people under increasing pressure from the modern world

Ice Age Giants

Prof Alice Roberts is on the trail of the great beasts of the Ice Age
Bill Bailey's Jungle Hero

Telling the story of Darwin's rival Wallace
Saving Species Listen

Radio Four examines the challenges of wildlife conservation
Great Bear Stakeout

Following the astonishing lives of grizzly bears

Share your photos of wildlife in summer.

Summer of Wildlife season revealed

Summer of Wildlife is a major new BBC season set to reveal the wonders of the UK's remarkable plants and animals.
Walk in the woods

Step into springtime at Sydenham Woods for a woodland festival.
Britain's best blossom

Where are the best blooms to be found?
Baby boom

Spring is a traditional time to welcome new life for many of the species in this video collection
Snowdrops

Some of the first bulbs of the year to bloom
Sound of spring

The cuckoo's familiar call returns from Africa
Butterflies awaken

Watch spring sunshine 'wake up' woodland butterflies