Image: Gabriel Barathieu
When American and British whaling ships hunted for sperm whales in the North Pacific in the early 1800s, they noted something disturbing. After initially good results, the whalers’ success in harpooning the whales fell by about 58% over the first few years of whaling. Now, a study led by Hal Whitehead, a whale biologist at Dalhousie University in Nova Scotia, may have found the answer as to why this happened. Using data from digitized whaleship logbooks, his team determined that the most likely explanation is that the sperm whales learned how to avoid the whalers and taught other groups of whales how to do the same.
When the 
In November 2019, 
One year ago today, Captain Brett Crozier walked down the gangway of the aircraft carrier USS Theodore Roosevelt. He had been relieved of command after the San Francisco Chronicle reported the contents of a leaked letter he wrote to his superiors in March pleading for help as his crew battled an outbreak of Covid-19 while underway.
On the last day of Women’s History Month, it is worthwhile remembering 
On the next to last day of Women’s History Month, it is a good time to honor 
Tugs and dredgers have been making some progress in refloated the stranded ultra-large container ship, Ever Given, that has blocked traffic in the Suez Canal since last Tuesday. The next best hope of freeing the stranded ship will come on Monday on the “king tide,” an exceptionally high tide. Whether sufficient dredging in way of the ship’s bow will be completed in time to make this possible, remains to be seen. 
The saying goes that the tide floats all boats. The current hope is that a peak high tide on Monday may allow salvors to refloat the ultra-large container ship 
The 
Despite optimistic estimates yesterday, the Suez Canal remains blocked in both direction by the ultra-large container ship 
On Tuesday morning, 
The German Navy sail training ship 
Two offshore wind energy projects off the US Northeast coast have received new approvals from regulators.