The prime minister defended the ‘hard-edged decisions’ he has made to cut funding from other departments to spend more on defence ...

Male White-throated Sparrows usually whistle a simple yet elegant tune: Oh sweet Canada Canada Canada. But that's not the song biologist Ken Otter has heard the local sparrows singing since 2000.

These noisy and sociable birds are found around the world, thanks to their cheerful ability to make the most of humanity's rubbish and wastefulness. But monitoring suggests a severe decline in the UK ...