Reporting in Science, researchers write that mouse stem cells can be transformed not only into egg cells--but into newborn pups. Sean Morrison, a stem cell expert at the University of Texas Southwestern, explains the stem cell's journey, and what it could mean for fertility and assisted reproduction.
The horn of the Japanese rhinoceros beetle can grow to be two-thirds the length of the rest of its body. And size matters. The beetles battle with their horns to get access to female beetles. Biologists Doug Emlen and Erin McCullough, of The University of Montana, are looking into what regulates the size of this extra-large attribute.
Beekeepers in eastern France were upset to find their bees were producing honey in unusual shades of blue and green. A nearby biogas plant processed waste from an M&M's factory. The bees were snacking on the candy coating. The waste treatment plant says it's storing the candy waste more securely.
Tens of thousands of African elephants are being slaughtered every year to meet demand for ivory in China, the Philippines and Thailand. Inside the underground ivory trade and the future of Africa's elephants.
Angry pet owners who believe contaminated Waggin' Train chicken jerky strips killed their pets are targeting the stores that sell them. Meanwhile, the FDA says it doesn't have enough evidence to issue a recall.
Mammoths and saber-toothed cats may be the most famous beasts of the Ice Age. But they shared the prairie with horses and camels, too--both of which evolved in North America and crossed the ice bridge into Eurasia, before disappearing here. Matthew Kohn and Christopher Hill talk about the lesser-known fauna of the Ice Age.
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