Humpback whales have ever-changing and evolving songs. But a new study of whales in Alaska shows their repertoire of calls - including growls, trumpets, and ahoogas - remains more stable. Why?
Whale watchers on a cruise out of Nova Scotia got a thrill when they saw 3 whales breach the surface, one after the other. "We did not drive them," the cruise director commented.
The early morning update on Wednesday, October 10, shows Michael has strengthened more than expected to a Category 4 hurricane. The storm is due to make landfall on the north Florida coast today.
On both September 19 and 23, Arctic sea ice dropped to its minimum extent of 1.77 million square miles (4.59 million square km). The 2018 minimum ties for the 6th-lowest in the satellite record.
When fog rolls in, it can bring along communities of airborne microorganisms, says a new study. Moisture in fog allows microbes to last longer than they would in dry air.