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A juvenile California two-spot octopus (Octopus bimaculoides) holds onto the walls of her aquarium with her flexible, sucker-lined arms. (Photo Credit: Michael LaBarbera)

This month in Nature, an international team of researchers released some of their key findings after a first-of-its-kind study of the genome of the California two-spot octopus. The team found a massive and unusually arranged genome, with many genes unique to the octopus that could provide clues to the unusual animals. One of the researchers, University of Chicago neurobiologist Cliff Ragsdale, joins Chicago Tonight to discuss the ongoing project.

Far-Traveling Birds that Visit Chicago

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Find out about the far-traveling birds that visit Chicago. We have an expert from the Nature Conservancy talk about the variety of migratory birds taking flight in the city. 

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To mark the 157th anniversary of Chicago's first science museum, we take a look at some surprising specimens - including a Chicago rattlesnake.