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The number of wildlife populations around the world has shrunk by nearly 70% in the last 50 years.

A new report carried out by the World Wildlife Fund (WWF), has revealed more about the health of our planet.

The Living Planet Report is carried out every two years and this helps experts and scientists to find out how the natural world is doing, what threats it is facing and what this means for people.

The WWF is urging world leaders to keep their promises to reduce emissions, limit the impact of climate change and support nature.

Tanya Steel, the boss of the organisation, says: "The climate and nature crises are not some faraway threat".

The report revealed that the biggest losses are in south America, especially in the Amazon rainforest, where trees are cut down for things like gold mining and soy farming.

Campaigners are asking for more to be done to protect the rainforest because it plays such an important role in the Earth's climate and biodiversity.

Bell Lyon from the WWF said : "The trees are responsible for giving us the oxygen that we breathe but also for absorbing and storing carbon which is hugely important for maintaining our world's climate."

They want more investment in sustainable farming and for products which damage the rainforest not to be available in the shops in the UK.

32,000 wildlife populations were looked at and this included more than 5,000 different species of mammals, birds, fish, amphibians and reptiles.

In south and western Australia, sea lion pups have declined because of hunting activities, being caught in fishing gear, or getting injured or catching diseases.

Freshwater species like the pink river dolphins and harlequin frogs are classified as vulnerable because their habitats are being destroyed.

The report found that shark and ray numbers have also dropped because of people fishing.

This decline in wildlife and wild places is mostly due to human activities such as deforestation, farming, fishing, pollution, and buildings and transport networks being built.

The WWF says climate change is increasingly becoming a major threat to habitats and ecosystems.

Some wildlife populations saw an increase in numbers according to this report:

The WWF has shared some top tips on small things people can do which make a difference.