Killer whale, Antarctica

Killare whale, by Donald Leroi (NOAA)
Killer whale, by Donald Leroi (NOAA)
Killer whale, by Donald Leroi (NOAA). A killer whale swims amid floating ice in the Ross Sea. Researchers from NOAA Fisheries, Southwest Fisheries Science Center are studying the whales to determine if there are three separate species of Antarctic killer whales. They took aerial photographs, such as this one taken in January 2005, as part of their work.