Date: April
23, 2018
Source:
Oregon State University
Summary:
When endangered killer whales swim through
the sheltered waters of Puget Sound, they leave behind traces of
"environmental DNA" that researchers can detect as much as two hours
later, a new study has found.
The findings, published today in the
journal Frontiers, are surprising and significant. They not only provide a
new non-invasive way to study whales, they may help scientists locate cetacean
species that are known but have rarely been detected -- including certain
beaked whales.
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