This is a nice, light-hearted start to the week. NBC News covers underwater robots that can hear the songs of endangered whales. How it helps:
The robots also detected fin, sei and humpback whales in the area, the first time autonomous vehicles have recorded songs of multiple whale species. The animals were recorded about 60 miles (97 kilometers) south of Bar Harbor, Maine, according to the release. Besides listening for whale songs, the robots also tested a number of variables to see why the area might be an appealing breeding ground, measuring water temperature and salinity, as well as samples of water to look for tiny animals called zookplankton upon which the whales feed.