When it comes to predators, size matters

Marine reserves play an important role in sustaining ecosystem diversity and abundance. Their presence enables certain species to return to a natural size structure, which enables predators to control destructive prey.

Move to conserve Bremer Canyon's orcas

The jury is still out as to why hundreds of killer whales (orcas) flock to a location above the continental shelf near Bremer Bay on WA's south coast.

AP Analysis: How well will Antarctic marine reserve work?

Last month 24 nations and the European Union agreed to create the world's largest marine reserve near Antarctica. The reserve in the Ross Sea is about twice the size of Texas, although will account for only a tiny fraction ...

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