A fragile truce in Syria appears to be crumbling after new airstrikes in Aleppo. More than 100 migrants are reported drowned after a boat capsizes off the Egyptian coast. And the U.S. allows Boeing to sell passenger planes to Iran. A panel of journalists joins guest host Amy Walter for analysis of the week's top international news stories.
Whales and dolphins are the animals closest to humans in their mental, social and behavioral complexity. As part of our ongoing Environmental Outlook Series, we take a look at what recent research tells us about intelligence under the sea.
- Janet Mann Professor of Psychology and Biology at Georgetown University, director of the Shark Bay Dolphin Research Project and author of the book "Cetacean Societies: Field studies of dolphins and whales."
- Lori Marino Senior Lecturer in Neuroscience and Behavioral Biology at Emory University in Atlanta, studies evolution of the brain and intelligence in cetaceans and primates.
- Toni Frohoff Director of TerraMar Research and co-author of the book, "Dolphin Mysteries: Unlocking the Secrets of Communication."
- Naomi Rose Senior Scientist for Humane Society International, specializing in international marine mammal protection issues.
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