In the Age of Extinction, which species can we least afford to lose?

Climate change and human intervention are accelerating the planet’s loss of biodiversity. So should we try to preserve ‘useful’ bees before ‘cuddly’ tigers?

Green news roundup: wildlife decline, solar in India and 35,000 walrus

The week’s top environment news stories and green events

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WWF International accused of ‘selling its soul’ to corporations

Pandaleaks writer says conservation group has forged links with business which is using it to ‘greenwash’ their operations

Julia Roberts plays Mother Earth and Harrison Ford stars as the Ocean as Hollywood A-list ‘speaks out for nature’

Kevin Spacey, Edward Norton and Penélope Cruz star in films that warn people need nature, but nature doesn’t need people

Breast Cancer Awareness Month: Support a Cure with Love and jewelry

Everyone can be part of the solution. We are all part of the cure. How will you #BeTheEnd? “Research is revolutionizing our understanding of cancer, leading us to the core of this insidious disease and transforming lives every day as women and men get the help they need.” Ending Breast Cancer Begins With You. In … Read more

How can we stop the persecution of birds of prey?

It’s time for us to get tough on wildlife crime

If you have an ethical dilemma, email Lucy at lucy.siegle@observer.co.uk