Carpio hits red carpet treatment for China Coast Guard PLAY LIST 02:14Carpio hits red carpet treatment for China Coast Guard02:56NCRPO pledges to donate P3.5 million to victims of Taal eruption00:56Heavy rain brings some relief in Australia02:37Calm moments allow Taal folks some respite03:23Negosyo sa Tagaytay City, bagsak sa pag-aalboroto ng Bulkang Taal01:13Christian Standhardinger wins PBA Best Player award Nueva Ecija warehouse making fake cigarettes raided, 29 Chinese workers nabbed Letran’s Final Four hopes are in peril as the Knights fell to 8-8.The league’s top three teams actually got the job done with San Beda bundling out Emilio Aguinaldo College, 88-51, and Jose Rizal U hammering out a thrilling 60-58 victory over San Sebastian.The Red Lions made it 13 wins in a row, while the Generals dropped out of the Final Four race after losing their 10th game of the season.It was a crucial win for the Bombers as they not only enhanced their hopes of making the next round, but also dealt another Final Four contender a huge blow.ADVERTISEMENT For the complete collegiate sports coverage including scores, schedules and stories, visit Inquirer Varsity. MOST READ CJ Perez put on another offensive onslaught in the final period as the Pirates turned back the Knights, 81-69, on Friday to move within two games of an elimination round sweep in NCAA Season 93 at Filoil Flying V Centre.Much as he has done for most of the season, Perez put the Pirates on his back when it mattered, scoring 10 of his 24 points in the last quarter as they secured a 16th straight victory.FEATURED STORIESSPORTSRedemption is sweet for Ginebra, Scottie ThompsonSPORTSMayweather beats Pacquiao, Canelo for ‘Fighter of the Decade’SPORTSFederer blasts lack of communication on Australian Open smog“It’s really fun to watch if you see your players having fun, having fun playing their hearts out, and having fun honoring the game,” said Lyceum coach Topex Robinson.“It’s the inspiration that’s really been there. It was a bit scary when Letran caught up but we know that they are just gonna keep on playing and that’s what makes this group of guys really special.” Ginebra logs key victory It’s too early to present Duterte’s ‘legacy’ – Lacson In ‘Jojo Rabbit,’ Comedy and Drama Collide LATEST STORIES OSG plea to revoke ABS-CBN franchise ‘a duplicitous move’ – Lacson How to help the Taal evacuees Margot Robbie talks about filming ‘Bombshell’s’ disturbing sexual harassment scene Mos Burger to open in Manila; teases with a pop-up Sports Related Videospowered by AdSparcRead Next View comments DAY6 is for everybody Jake says relationship with Shaina ‘goes beyond physical attraction’ Lyceum took Letran’s best punches and still walked away with its perfect record intact.ADVERTISEMENT Don’t miss out on the latest news and information.
(If this video is appearing as a shark video, please try viewing it in a browser other than Internet Explorer.)The mournful, curiously repetitious yet ever-changing songs of male humpback whales have long puzzled scientists. The tunes are part of the males’ mating displays, but researchers don’t know their exact function, or which males in a population are doing the singing. Now, scientists who’ve been studying the giant marine mammals in Hawaii for almost 40 years report that even sexually immature males join older males in singing, apparently as a way to learn the music and to amplify the song. The beefed-up, all-male choruses may attract more females to the areas where the songsters hang out.Scientists generally thought that only adult male humpbacks (Megaptera novaeangliae) sing, says Louis Herman, a marine mammal biologist emeritus at the University of Hawaii, Manoa, and the lead author of the new study. “But that’s just because you can’t easily tell which ones are mature and which ones are immature,” he says. “We know that mature males are larger than immature ones, so we had to figure out an unobtrusive way to measure them in the open ocean.”Herman and his team hit on a technique by looking at 20th century whaling records. Biologists with whaling operations in the Southern Ocean had the opportunity to measure many humpbacks killed during the commercial hunts. They determined, based on the weight of males’ testes, that the whales reached sexual maturity at a body length of 11.2 meters. Working independently, whaling biologists in Japan, who also measured killed whales, reached a similar conclusion; they described 11.3 meters as the break point between adolescents and adults.Sign up for our daily newsletterGet more great content like this delivered right to you!Country *AfghanistanAland IslandsAlbaniaAlgeriaAndorraAngolaAnguillaAntarcticaAntigua and BarbudaArgentinaArmeniaArubaAustraliaAustriaAzerbaijanBahamasBahrainBangladeshBarbadosBelarusBelgiumBelizeBeninBermudaBhutanBolivia, Plurinational State ofBonaire, Sint Eustatius and SabaBosnia and HerzegovinaBotswanaBouvet IslandBrazilBritish Indian Ocean TerritoryBrunei DarussalamBulgariaBurkina FasoBurundiCambodiaCameroonCanadaCape VerdeCayman IslandsCentral African RepublicChadChileChinaChristmas IslandCocos (Keeling) IslandsColombiaComorosCongoCongo, The Democratic Republic of theCook IslandsCosta RicaCote D’IvoireCroatiaCubaCuraçaoCyprusCzech RepublicDenmarkDjiboutiDominicaDominican RepublicEcuadorEgyptEl SalvadorEquatorial GuineaEritreaEstoniaEthiopiaFalkland Islands (Malvinas)Faroe IslandsFijiFinlandFranceFrench GuianaFrench PolynesiaFrench Southern TerritoriesGabonGambiaGeorgiaGermanyGhanaGibraltarGreeceGreenlandGrenadaGuadeloupeGuatemalaGuernseyGuineaGuinea-BissauGuyanaHaitiHeard Island and Mcdonald IslandsHoly See (Vatican City State)HondurasHong KongHungaryIcelandIndiaIndonesiaIran, Islamic Republic ofIraqIrelandIsle of ManIsraelItalyJamaicaJapanJerseyJordanKazakhstanKenyaKiribatiKorea, Democratic People’s Republic ofKorea, Republic ofKuwaitKyrgyzstanLao People’s Democratic RepublicLatviaLebanonLesothoLiberiaLibyan Arab JamahiriyaLiechtensteinLithuaniaLuxembourgMacaoMacedonia, The Former Yugoslav Republic ofMadagascarMalawiMalaysiaMaldivesMaliMaltaMartiniqueMauritaniaMauritiusMayotteMexicoMoldova, Republic ofMonacoMongoliaMontenegroMontserratMoroccoMozambiqueMyanmarNamibiaNauruNepalNetherlandsNew CaledoniaNew ZealandNicaraguaNigerNigeriaNiueNorfolk IslandNorwayOmanPakistanPalestinianPanamaPapua New GuineaParaguayPeruPhilippinesPitcairnPolandPortugalQatarReunionRomaniaRussian FederationRWANDASaint Barthélemy Saint Helena, Ascension and Tristan da CunhaSaint Kitts and NevisSaint LuciaSaint Martin (French part)Saint Pierre and MiquelonSaint Vincent and the GrenadinesSamoaSan MarinoSao Tome and PrincipeSaudi ArabiaSenegalSerbiaSeychellesSierra LeoneSingaporeSint Maarten (Dutch part)SlovakiaSloveniaSolomon IslandsSomaliaSouth AfricaSouth Georgia and the South Sandwich IslandsSouth SudanSpainSri LankaSudanSurinameSvalbard and Jan MayenSwazilandSwedenSwitzerlandSyrian Arab RepublicTaiwanTajikistanTanzania, United Republic ofThailandTimor-LesteTogoTokelauTongaTrinidad and TobagoTunisiaTurkeyTurkmenistanTurks and Caicos IslandsTuvaluUgandaUkraineUnited Arab EmiratesUnited KingdomUnited StatesUruguayUzbekistanVanuatuVenezuela, Bolivarian Republic ofVietnamVirgin Islands, BritishWallis and FutunaWestern SaharaYemenZambiaZimbabweI also wish to receive emails from AAAS/Science and Science advertisers, including information on products, services and special offers which may include but are not limited to news, careers information & upcoming events.Required fields are included by an asterisk(*)To determine the lengths of living male humpbacks, Herman’s group analyzed digital videos that they made between 1998 and 2008 of 87 of the whale singers. The males were recorded as they sang in the waters off the Hawaiian islands of Maui, Lanai, Molokai, and Kahoolawe during their winter mating season. A swimmer carried the camera in one hand and in the other hand carried a sonar device, which measured the distance from the camera to the whale. The swimmer began filming when the whale assumed a horizontal position (singing whales are typically canted with their heads downward), so that he or she could capture the full body length of the whale while keeping the camera’s axis perpendicular to the whale and close to its midline. The researchers calculated the whales’ body lengths from these images and the distance measurements.The scientists found that the whales varied in length from 10.7 meters to 13.6 meters. Using 11.3 meters as the boundary for sexually mature adults, the researchers counted 74 humpback singers as mature and 13 as immature. The team has been following individual humpbacks (which are identified by the unique markings on their tail flukes) for decades, and its analysis also showed that some individual males have been singing for 17 to 20 years. “It is a lifelong occupation for them,” says Herman, who notes that male calves and probably 1-year-old males don’t join in.During the winter months in Hawaii, the male humpbacks assemble in areas that the researchers call arenas, where the males sing and compete for females. Typically, the singers are widely dispersed around their arenas, which may help amp up the reach of the chorus. Males also sing in other social situations, such as while escorting a female humpback and her calf (see video).When chorusing at the arenas, immature and mature whales are engaged in an unintentional mutual benefits game, Herman and his colleagues argue. By singing with the big boys, the youngsters indirectly learn the songs and the social rules of the mating grounds. The older males, in turn, gain an extra voice in their asynchronous chorus, his team reports in an upcoming issue of Behavioral Ecology and Sociobiology. “We know that the females don’t respond to an individual male’s song,” Herman says. “It’s not like a songbird’s song, designed to attract a female and repel other males. The humpbacks’ songs are meant to attract females to the arena.” That is, they tell the gals where the boys are. And another voice, even one of a young, inexperienced male, may help carry the message, he says.The findings strengthen the still controversial idea that gatherings of male humpback whales may be similar to some birds’ lek mating systems, such as those of the sage grouse, which also feature male assemblages. If proved, humpbacks would be the first whale known to have this type of system.“This is great stuff,” says Phillip Clapham, a cetacean biologist at the National Marine Mammal Laboratory in Seattle, Washington. He applauds the idea of the males’ chorus serving to “collectively ‘call in’ the females.” He adds that “we’ve known for many years that only male humpbacks sing, but no one had ever managed to figure out a way to determine the maturational class of the singers, so this is a significant advance.” Now all Herman and his team have to do is determine which of the male singers in the chorus a female actually mates with—an event the researchers have yet to see. Singer in the deep. A male humpback sings while escorting a female and her calf off the coast of Maui. This video was obtained under NOAA Permit #707-1531-00. Credit: The Dolphin Institute
Comments Share Brotherly love.With trade rumors swirling the Arizona Cardinals made a few under the radar signings, including the brothers of Calais Campbell and John Skelton.Miami safety Jared Campbell and Fordham tight end Stephen Skelton are among 21 rookie free agents signed by the Cardinals.Campbell comes to the Cardinals after playing in 10 games as a Hurricane last season. He finished his Miami career with 36 tackles and a forced fumble, but the majority of his impact was felt on special teams. Cardinals expect improving Murphy to contribute right away D-backs president Derrick Hall: Franchise ‘still focused on Arizona’ The younger Skelton started 11 games in his senior season and had 42 receptions. He experienced his best year in college when John Skelton was still on the team. When the Skelton’s were paired together, Stephen set career highs in receptions (63) and touchdowns (6).The Cardinals needed to sign 49 players in order to fill the 90 man roster prior to the opening of training camp.Arizona signed players on both sides of the ball and even included a couple of players from the Pac-12.Oregon State receiver Aaron Nichols has been signed along with USC center and Tucson native Kris O’Dowd.While at USC, O’Dowd started 36 games and was an All-Pac 10 selection. He was also named USC’s offensive lineman of the year in 2008. Top Stories What an MLB source said about the D-backs’ trade haul for Greinke Nevada officials reach out to D-backs on potential relocation