Persons of the Week: Washington Univ. Bird Researchers

The secret to understanding how humans learned to speak may come from an unlikely place -- the love songs of the Australian Zebra Finch. This week, scientists at the Washington University School of Medicine announced that after 20 years of work, they have finally mapped the genome of the small bird species that learns love songs the same way a human learns words. "Most animals instinctively vocalize sounds, for example, cats "meow" and dogs "bark," said Dr. Wesley Warren, who has spearheaded...Full Story