BARRY SPLETZER:"They’re historically significant in that we have the world’s smallest robot. We have what was the world’s largest swarm. We have the world’s highest-hopping robot. These have all been significant advances in technology in the last ten to fifteen years."

FAITH LAPIDUS: MARV was developed in the nineteen nineties at the Sandia National Lab. Mr. Spletzer says these robotic technologies are finding uses in space exploration, medicine, and security systems. Museum Curator Carlene Stephens hopes the donated robots and others that follow will show the important part science and technology play in everyday life.

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A mother brown bear nurses her cub in the McNeil River State Game Sanctuary southwest of Anchorage, Alaska

BOB DOUGHTY: The traditional warning to people who hunt, fish or walk in the wild is not to surprise a mother bear protecting her cubs. Female bears with their young are often thought to be a threat to human beings.

But a new report says lone male bears are more dangerous than the females. And the report has suggested that the males may have developed behaviors different from the females.

Stephen Herrero is a retired professor at the University of Calgary in Canada. He led the study of bear behavior. Results of the study were published in the Journal of Wildlife Management.

Mr. Herrero and his team studied records of human deaths from black bear attacks in the wilds of North America. They examined records between nineteen hundred and two thousand nine. They found that sixty-three people died in fifty-nine incidents during that time. The attacks took place in the United States and Canada.