|Land-based food not nutritionally sufficient for wild polar bears, according to new study
Posted: 13 Sep 2016 12:05 PM PDT
On average, a polar bear loses up to 30 percent of its total body mass while fasting during the open-water season. Although some scientists previously believed land-based foods could supplement the bears’ nutritional needs until the sea ice returns, a new study has revealed that access to terrestrial food is not sufficient to reduce the rate of body mass loss for fasting polar bears.
|Study links altered brain chemistry, behavioral impairments in fish exposed to elevated carbon dioxide
Posted: 13 Sep 2016 09:52 AM PDT
Increased carbon dioxide concentrations alters brain chemistry that may lead to neurological impairment in some fish, a first-of-its-kind study demonstrates.