Australia Washington state Mississippi Tonga Twitter Department travelers Health reports Australia Washington state Mississippi Tonga

Lonely tunes: Fewer humpback whales wail as population grows, study finds

Reading now: 872
www.fox29.com

WASHINGTON - Those melancholy tunes sung by humpback whales may really be a sign of loneliness.Scientists who tracked humpback whales in Australia noticed that fewer whales wailed to find mates as their population grew."Humpback whale song is loud and travels far in the ocean," said marine biologist Rebecca Dunlop, who has studied humpback whales that breed near the Great Barrier Reef for more than two decades.As whale numbers dramatically rebounded following the end of commercial whaling — one of the world’s great conservation success stories — she noticed something unexpected.(Credit: The Institute for Marine Mammal Studies Gulf Port Mississippi)"It was getting more difficult to actually find singers," said Dunlop, who is based at the University of Queensland in Brisbane. "When there were fewer of them, there was a lot of singing — now that there are lots of them, no need to be singing so much."Scientists first began to hear and study the elaborate songs of humpback whales in the 1970s, thanks to new underwater microphones.

Only male whales sing, and the tunes are thought to play a role in attracting mates and asserting dominance.Eastern Australia’s humpback whales were facing regional extinction in the 1960s, with only around 200 whales left.

But numbers grew and reached 27,000 whales by 2015 — approaching estimated pre-whaling levels.Humpback whale, Megaptera novaeangliae, and calf, underwater, Vava u, Tonga (Photo by: Auscape/Universal Images Group via Getty Images) As the density of whales increased, their courtship changed.

Read more on fox29.com
The website covid-19.rehab is an aggregator of news from open sources. The source is indicated at the beginning and at the end of the announcement. You can send a complaint on the news if you find it unreliable.

Related News

Eddie Kadhim - Residents voice concerns about spate of Philadelphia shootings involving teens, car thefts - fox29.com - city Philadelphia
fox29.com
42%
619
Residents voice concerns about spate of Philadelphia shootings involving teens, car thefts
PHILADELPHIA - Concerns about gun violence are mounting for residents in two Philadelphia neighborhoods where police say teens were injured in shootings that involved attempted car thefts. Carlian Burns lives near the intersection of 24th Street and Ridge Avenue where police say a 16-year-old old and an 18-year-old were shot during a suspected car theft Friday morning."It’s wild because something is always happening," Burns said. Both shooting victims were found by police and taken to Temple University Hospital where the 18-year-old who suffered multiple gunshot wounds was placed in critical condition. MORE LOCAL HEADLINESHours earlier, police in Philadelphia's Tacony section said a shootout erupted in broad daylight when the owner of a Toyota sedan caught two teens attempting to steal the car.An 18-year-old was shot multiple times in the exchange of gunfire with the vehicle's owner, who police say is licensed to carry a firearm and is cooperating with the investigation. The second suspect who was inside the driver's seat when the gunfight erupted managed to drive the stolen car about a block before he crashed and fled on foot, according to police. "I feel like we're living in the Wild, Wild, West right now, with no laws and no honor," Sherron Weeks said. A Philadelphia neighborhood is left shaken after police say a gun battle erupted in broad daylight between a car thief and the owner of the vehicle.She's experienced the violence plaguing North Philadelphia first-hand, telling FOX 29's Eddie Kadhim that she was attacked in her neighborhood over a month ago."They're hurting us around here, I just got stabbed in my head and my arm by a woman who took my coat right there on 23rd and Ridge," Weeks said. Rita Henderson from
DMCA