You are here: Home >Archive for Ноябрь 29th, 2013

Five distinct humpback whale populations identified in North Pacific

Five distinct humpback whale populations identified in North Pacific

The first comprehensive genetic study of humpback whale populations in the North Pacific Ocean has identified five distinct populations — at the same time a proposal to designate North Pacific humpbacks as a single «distinct population segment» is being considered under the Endangered Species Act. Results of the study are being published this week in […]

Living desert underground: In perpetual darkness of limestone cave, surprisingly diverse ecosystem of microbes

Living desert underground: In perpetual darkness of limestone cave, surprisingly diverse ecosystem of microbes

Hidden underneath the hilly grasslands studded with ocotillos and mesquite trees in southeastern Arizona lies a world shrouded in perpetual darkness: Kartchner Caverns, a limestone cave system renowned for its untouched cave formations, sculpted over millennia by groundwater dissolving the bedrock and carving out underground rooms, and passages that attract tourists from all over the […]