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Why polar bears cant survive on land
Highlights
Polar bears, increasingly being forced on shore due to sea ice loss, may be eating land-based foods including berries, birds and eggs. However, these foods cannot make up for the benefits from their traditional, lipid-rich prey - ice seals, says a new study. \"Although some polar bears may eat terrestrial foods, there is no evidence the behaviour is widespread,\" said Karyn Rode, lead author of the study and scientist with the US Geological Survey (USGS).
New York: Polar bears, increasingly being forced on shore due to sea ice loss, may be eating land-based foods including berries, birds and eggs. However, these foods cannot make up for the benefits from their traditional, lipid-rich prey - ice seals, says a new study. "Although some polar bears may eat terrestrial foods, there is no evidence the behaviour is widespread," said Karyn Rode, lead author of the study and scientist with the US Geological Survey (USGS). Those grizzly bears occur at low densities and are some of the smallest of their species due to low food quality and availability.
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