When I read the headline of yesterday's New York Times article, "Whales’ Lower-Pitch Sound Has Experts Guessing," I assumed the lede would be something like, "Whales' songs are deepening as they grow depressed about global warming." Just goes to show, I generally associate deeper-pitched sounds with sadness and mourning -- and I assign human characteristics to animals perhaps too zealously... As it turns out, the lower moans might portend good after all. The piece reports that the song of blue whales around the world has grown deeper -- and scientists speculate that it could be because their population is on the rise since commercial whaling bans began to take effect in the 1970s.
From the Associated Press -- Scientists Spot Rare Blue Whales in Alaska:
ANCHORAGE, Alaska (AP) -- Federal scientists have sighted a rare mammal in Alaska waters - endangered blue whales, the largest animal known to live on Earth.
The sighting by researchers on board a National Oceanic and Atmospheric Administration vessel means the blue whale population may be getting healthier and expanding back to traditional territories.