Russian-born scientist and Harvard University researcher Kseniia Petrova, who was charged with smuggling frog embryos into the United States, was released on bail from federal custody in Boston Thursday. (AP video: Leah Willingham)

Harvard researcher charged with smuggling frog embryos is released from federal custody on bail

Russian-born scientist and Harvard University researcher Kseniia Petrova, who was charged with smuggling frog embryos into the United States, was released on bail from federal custody in Boston Thursday. (AP video: Leah Willingham)