Photo: Poison Frogs Losing Their Toxicity, Study Suggests



Mantella betsileo is one of many poison frog species native to the African island nation of Madagascar. A new study surveying frog species in the area suggests that habitat fragmentation by human development is robbing the frogs of their bite.

Photograph courtesy Valerie C. Clark


NEWS FEEDS    After installing a news reader, click on this icon to download National Geographic News's XML/RSS feed. After installing a news reader, click on this icon to download National Geographic News's XML/RSS feed.

Get our news delivered directly to your desktop—free.
How to Use XML or RSS

ADVERTISEMENT

NATIONAL GEOGRAPHIC'S PHOTO OF THE DAY

50 Drives of a Lifetime

Listen to your favorite National Geographic news daily, anytime, anywhere from your mobile phone. No wires or syncing. Download Stitcher free today.