The Atlantic bluefin tuna is an amazing creature. A warm-blooded fish, it accelerates faster than a Porsche and covers thousands of kilometres in its lifetime.

But the fish, which swims into the Mediterranean each year to reproduce, is facing a crisis. If unscrupulous fishing continues the species could become biologically and commercially extinct.

Find out more about this amazing creature and what you can do to help

Human footprint too big for nature

The world's natural ecosystems are being degraded at a rate unprecedented in human history according to WWF's 2006 Living Planet Report. It shows that on current projections we will be using two planets' worth of natural resources by 2050 - if those resources have not run out by then.

The Living Planet Report is WWF's periodic update on the state of the world's ecosystems. It describes the changing state of global biodiversity and the pressure on the biosphere arising from human consumption of natural resources. Read more

Simple tips on how you can reduce your footprint

Looking for lynx in the Swiss Alps

The lynx, like its fellow European predators the brown bear and wolf, was wiped out of Switzerland's alpine landscape by the end of the 19th century as a result of human activity and persecution.

One hundred years later and the pointy-eared feline has found its way back to the mountains, but only just.

Discover more about the lynx and human-wildlife conflict in the Swiss Alps

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Photo credits: Pechoro-Ilychskiy Nature Reserve © WWF-Canon / Per ANGELSTAM, Atlantic bluefin tuna © M. San Felix, Man's bare foot ©WWF-Canon / Chris Martin BAHR, Eurasian lynx © WWF / Fritz Pölking.