Lodgers on manganese nodules: Sponges promote a high diversity

Polymetallic nodules and crusts cover many thousands of square kilometers of the world's deep-sea floor. They contain valuable metals and rare earth elements and are therefore of great economic interest. To date, there is ...

Recovery of sea otter populations yields more benefits than costs

Since their reintroduction to the Pacific coast in the 1970s, the sea otters' rapid recovery and voracious appetite for tasty shellfish such as urchins, clams and crabs has brought them into conflict with coastal communities ...

Obama vows to fast track high speed rail

US President Barack Obama Thursday called for a US high speed rail service to rival the express trains of France, Japan, Spain and China, highlighting a 13 billion dollar government funding boost.