Delegates to an international species conservation conference in Bangkok, Thailand, this week have agreed to limit the trade of shark fins and meat.
NPR's Christopher Joyce reports that government representatives to the Convention on International Trade in Endangered Species, or CITES, have agreed to put the porbeagle, oceanic whitetip, three kinds of hammerhead shark and two kinds of manta ray on its Appendix II list, which places restrictions on fishing but still allows limited trade.
In her new book, Frankenstein's Cat:Cuddling up to Biotech's Brave New Beasts, science journalist Emily Anthes talks about how the landscape of bioengineering has expanded since Dolly the Sheep was cloned in 1996. Scientists, she says, are now working to create pigs that can grow organs for human transplant, goats that produce valuable protein-rich milk, and cockroaches that could potentially serve as tiny scouts into danger zones for the military.
Ever since she was a small child, Samantha Grimaldo has had to carry her voice with her.
Grimaldo was born with a rare disorder, Perisylvian syndrome, which means that though she's physically capable in many ways, she's never been able to speak. Instead, she's used a device to speak. She types in what she wants to say, and the device says those words out loud. Her mother, Ruane Grimaldo, says that when Samantha was very young, the voice she used came in a heavy gray box.
Like many humans, most young animals approaching adulthood tend to leave their parents and siblings and strike out on their own. They want to avoid competing with relatives. They want to avoid incest. In certain species, they want to avoid nagging.
But a new paper published in Thursday's Science shows there's at least one species that bucks this trend. Prairie dogs, especially female prairie dogs, stay home. They tend to only leave their native territories when all of their relatives are gone.