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A new study published in the journal Nature Communications Biology suggests that whale songs may actually just be nature's emo croon. Using an 18-year dataset of humpback whale behavior, the researchers noticed that whale song had become an increasingly less successful mating tactic for the male humps as populations have recovered from the height whaling. — Read the rest
Male whales along Australia’s eastern seaboard are giving up singing to attract a mate, switching instead to fighting their male competition.
Researchers analyzed almost two decades of data on humpback whale behavior and found singing may no longer be in vogue when it comes to seduction.
“…humans aren’t the only ones subject to big social changes when it comes to mating rituals.”
“In 1997, a singing male whale was almost twice as likely to be seen trying to breed with a female when compared to a non-singing male,” says Rebecca Dunlop, associate professor at the University of Queensland’s School of Biological Sciences.
“But by 2015 it had flipped, with non-singing males almost five times more likely to be recorded trying to breed than singing males. It’s quite a big change in behavior so humans aren’t the only ones subject to big social changes when it comes to mating rituals.”
The researchers believe the change has happened progressively as populations recovered after the widespread cessation of whaling in the 1960s.
“If competition is fierce, the last thing the male wants to do is advertise that there is a female in the area, because it might attract other males which could out-compete the singer for the female,” Dunlop says.
“By switching to non-singing behavior, males may be less likely to attract competition and more likely to keep the female. If other males do find them, then they either compete, or leave.
“With humpbacks, physical aggression tends to express itself as ramming, charging, and trying to head slap each other. This runs the risk of physical injury, so males must weigh up the costs and benefits of each tactic.”
“Male whales were less likely to sing when in the presence of other males. Singing was the dominant mating tactic in 1997, but within the space of seven years this has turned around,” she says.
“It will be fascinating to see how whale mating behavior continues to be shaped in the future.”
Celine Frere, an associate professor and study coauthor, says previous work from Professor Michael Noad found the whale population grew from approximately 3,700 whales to 27,000 between 1997 and 2015.
“We used this rich dataset, collected off Queensland’s Peregian Beach, to explore how this big change in whale social dynamics could lead to changes in their mating behavior,” Frere says.
“We tested the hypothesis that whales may be less likely to use singing as a mating tactic when the population size is larger, to avoid attracting other males to their potential mate.”
The research appears in Communications Biology.
Source: University of Queensland
The post To woo a mate, male whales choose fighting over singing appeared first on Futurity.
As January draws to a close, our favorite stories this week included a stirring critical essay, a paean to the world’s greatest boxed meal, a rethinking of psychedelics’ impact on the planet, a profile of a craftsperson at his peak, and an eye-opener about how humpback whales use air in some unexpected ways.
Ken Chen | n+1 | 11,542 words | January 25, 2023
After Corky Lee passed last year, the photographer and community organizer was memorialized in his hometown’s most conventionally prestigious outlets: The Times offered a sizable obituary, as did Hua Hsu in The New Yorker. This week, on the first anniversary of Lee’s death, Ken Chen rendered an altogether different kind of portrait in n+1. Much of the same biographical information is included, as are a number of Lee’s iconic photographs of Asian Americans in New York throughout the last six decades. Yet, when Chen writes about his encounters with Lee, and about the 14 photographs he selects to represent Lee’s work, the grief that suffuses his words isn’t solely about Lee, but about the many atrocities visited upon the Asian American community, up to and after Lee’s death. Chen’s critical acumen here is reason enough to read: “His images lack a charismatic subject,” he writes of Lee. “Those whom capital dismissed as surplus, he saw as beautiful. He commemorated the multitude, the striking waiters and seamstresses whose unruly abundance crowded away any beatific composition.” But he brings a similar understated poetry to the social conditions Lee’s work served to illuminate — and with violence against Asian American elders and others seemingly unending (including a horrifying recent attack in my own hometown), that juxtaposition makes Chen’s piece nearly as indelible as the images it contains. —PR
Ivana Rihter | Catapult | January 19, 2023 | 2,261 words
I only discovered Kraft dinners later in life after moving to North America revealed the cult of Kraft to me. A stable lurking in every cupboard; I admired the respect that something so impossibly orange had managed to garner. When Ivana Rihter finds KDs, though, they are much more; cooked for her by her baba, they are inextricably linked to her immigration story. She describes the process of boiling the pasta and adding the sauce with reverence, the memory mixed in with her love for her baba and appreciation for the economic hardships her family struggled through to start their new life. Her baba teaches her to put feta on top, and with this “secret little piece of the home country mixed in with all-American shelf-stable cheese” it remains a food for life, and — consistently sitting at about a dollar a box — one that carries on seeing her through hard times. I found this an unexpectedly beautiful essay, more about memory and belonging than cheesy pasta. Food can transport you back in time, especially if, as Rihter describes it, it “is soaked with memories of [an] origin story.” —CW
Amber X. Chen | Atmos | January 16, 2023 | 3,196 words
In this piece, Chen explores what the current psychedelic renaissance means for environmental activism, and how synthetic drugs like LSD and MDMA and psychoactive plants like ayahuasca and peyote can stir change within individuals — and ultimately galvanize social movements. This all sounds incredibly positive on the surface, but not everyone who dabbles in such mind-altering journeys is transformed for the better; psychedelics also fuel right-wing movements, too. (See: “QAnon Shaman.“) The decriminalization of psychedelics is a step toward making their therapeutic benefits accessible to more people, yes, but as Chen notes, it increases the threat of deforestation, and — with today’s psychedelic movement being largely white — it also takes power away from Indigenous people, who have harnessed the healing power of these sacred plants for thousands of years. (See also a Top 5 essay I picked last year: “The Gentrification of Consciousness.”) I appreciate Chen’s exploration here, and the questions posed that I haven’t stopped thinking about, like: “How broken is Western society that we think we need drugs in order to facilitate mass climate action?” —CLR
Elly Fishman | Chicago Magazine | January 17, 2023 | 4,177 words
Recently, in his late 60s, my dad decided to learn how to play the violin. I respect the choice to try the impossible, especially something as delicate and timeless as bowing a stringed instrument. (My parents’ cats, who endure the scratching out of notes from beneath the couch or bed, seem to have a different opinion.) After reading this lovely profile, I think perhaps my dad, a skilled carpenter, should also try apprenticing as a luthier. I, someone with zero skills at playing an instrument besides an egg shaker, who curses putting IKEA furniture together, was mesmerized by the descriptions of how John Becker, perhaps the best violin restorer on earth, practices his craft. Elly Fishman’s profile has a musical quality: It sweeps readers through chapters of Becker’s personal story and dwells in long, lyrical moments when, with the surest of hands, Becker repairs some of the most revered instruments on the planet — namely, Stradivari. There are just 650 of the violins left. What makes them so extraordinary? Musicians and scientists may puzzle over that question forever. In the meantime, Becker works — quietly, meticulously, instinctively. “We are caretakers of these instruments,” one of his clients tells him. “We move on, but these instruments continue to the next generation.” —SD
Doug Perrine | Hakai Magazine | December 20, 2022 | 1,500 words
It’s well known that many animals use tools to aid feeding and other tasks of life. Think: otters floating on their backs, cracking shells with rocks. You’d think it would be hard for whales to use tools, but as Doug Perrine reports at Hakai Magazine, humpbacks use what’s available to them — air and water — to form bubbles for a variety of activities. “I’m tempted to describe the air in a humpback’s lungs as a Swiss army knife because I’ve seen whales do so many different things with it,” he wrote. “It is not actually a tool collection though, but a storehouse of raw construction material with which the whale can fashion a variety of tools. Lacking free fingers and opposable thumbs, whales are unable to create and use tools in the same way as humans, but reveal their intelligence through the manner in which they utilize other body parts for tool production and use.” —KS
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Humpback whales use bubbles to screen their young, corral prey, and ward off aggressors, among other things. But do they have special bubble signatures used only when humans are present?
This young female whale approached my boat, then dove and began “drawing” with bubble curtains released in a thin stream from her blowhole. There was no food around and no other whales in sight. She rolled to one side so that she could look upward to admire her handiwork. Was she practicing making bubble structures that could be useful tools on the feeding grounds, or was she just enjoying the visual beauty of the scintillating bubble spirals? Was it art for art’s sake? Certainly, other animals, including captive dolphins, sea lions, rhinos, and elephants have learned to paint with brushes, and both wild bowerbirds and pufferfish produce visual art to impress potential mates.
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