Watch Museum scientists reflect on the time spent over the last three years preparing Hope the #BlueWhale skeleton for display in the newly redeveloped #HintzeHall: http://bit.ly/NHM-Blue-Whale-Story You can see Hope the #BlueWhale, now on display in the Hall. From a sparkling meteorite as old as our solar system, to sea birds and giraffes there are hundreds of newly displayed specimens alongside Hope across the ground floor and balconies. | Natural History Museum, London

Blue whale vocalizations are very low frequency sounds with some in the 15 Hz range. These tones characteristically travel long distances due to the high power, but also due to very long-wavelengths (over 300 feet for 15 Hz). This enables their songs to be heard thousands of miles from the source. We can assume that the projection distance is important (Nature can be extravagant, but she is never wasteful), but we can only speculate why they need to broadcast their songs across ocean basins. The

10K views · 136 reactions | It's an ending that many feared was coming, but is no less heartbreaking. On Nov. 20, Bluey the beluga whale was spotted floating lifeless near Hickman's Harbour, the area he had made his home for more than two years. www.cbc.ca/1.6258510 #beluga #whales | CBC Newfoundland and Labrador | Facebook