Soanyol memiliki teori baru tentang salah satu penyebab kepunahan neanderthal (Homo
Saco-Indonesia.com — Peneliti asal Soanyol
memiliki teori baru tentang salah satu penyebab kepunahan neanderthal (Homo
neanderthalensis). Menurut para peneliti, manusia ikut berkontribusi dalam kepunahan spesies
itu, salah satunya dengan memburu dan memakannya.
Policarp Hortola dan
Bienvenido Martinez-Navarro dari Universitat Rovira i Virgili di Tarragona, Spanyol, mengatakan,
"Kecuali di tanah asalnya Afrika, di benua lain, Homo sapiens bisa dikatakan
sebagai spesies invasif."
Saat ini, ada banyak kasus ketika spesies
dalam hal invasi mengancam spesies lokal. Jadi, pada akhir masa pleistosen, mungkin saja
neanderthal kalah berkompetisi dengan manusia yang terus menyebar ke Asia dan Eropa.
"Kami berpikir bahwa manusia yang mendiami relung yang sama dengan
neanderthal, tetapi punya teknologi lebih maju, dalam kolonisasi di wilayah Eropa akan
berkompetisi secara langsung untuk memperoleh makanan dan sumber daya alam lain," kata
Martinez-Navarro seperti dikutip NBC News, 21 Mei 2013.
serupa dalam hipotesis ini juga dijumpai pada hewan lain. Misalnya, harimau bergigi pedang
Afrika yang menginvasi Eropa 1,8 juta tahun lalu memusnahkan kerabatnya. Kemudian, invasi
African spotted hyena juga bersamaan dengan punahnya giant short faced hyena
800.000 tahun lalu.
Hortola dan Martinez-Navarro dalam artikelnya di
jurnal Quatemary International edisi Mei 2013 mengatakan bahwa mereka meyakini
hipotesisnya, tetapi hingga saaat ini belum memiliki bukti yang bisa mendukungnya.
"Satu-satunya cara untuk menguji kebenaran teori itu adalah menemukan bukti langsung
tanda bekas manusia memakannya pada tulang neanderthal, seperti tanda kerusakan pada
tulang pada artefak yang dibuat manusia," kata Martinez Navarro.
ekologi purba JR Stewart dari Bournemouth University di Inggris mengungkapkan bahwa memang bukti
yang mendukung teori itu belum ada. Namun, bukan berarti teori itu bisa langsung gugur. Hanya,
masih banyak yang perlu diteliti untuk membuktikan kebenarannya.
menarik karena faktanya sisa-sisa neanderthal yang memiliki tanda bekas dipotong
ditemukan di tempat yang penuh artefak neanderthal, bukan artefak manusia. Ini artinya
bahwa mereka dimakan neanderthal sendiri," katanya.
"Gagasan bahwa manusia memburu neanderthal hingga punah seperti kepunahan
megafauna termasuk baru. Bukan manusia membunuh neanderthal dengan genosida, seperti
yang sebelumnya pernah diduga," imbuhnya.
Editor :Liwon Maulana(galipat)
saco-indonesia.com, Bagai jatuh tertimpa tangga, inilah yang telah dialami oleh Reza yang berusia 19 tahun , yang telah menjadi
saco-indonesia.com, Bagai jatuh tertimpa tangga, inilah yang telah dialami oleh Reza yang berusia 19 tahun , yang telah menjadi korban pemukulan di Jalan Dewi Sartika, Cililitan, Kramatjati, Senin (17/2) kemarin . Niat hati ingin memarahi sopir Kopaja yang akan menabraknya, pemuda ini malah dipukuli gerombolan ormas yang ada di dalam kendaraan tersebut.
Kapolsek Kramatjati, Kompol Andini telah menuturkan, peristiwa itu telah terjadi sekitar pukul. 18:30. Reza telah menjadi bulan-bulanan penumpang yang tidak terima memarahi sopir atas mobil yang ditumpanginya. “Korban luka memar di wajahnya ,” kata kapolsek Senin (17/2) kemarin .
Diceritakan Kapolsek, kejadian itu bermula saat korban yang akan menyeberang di samping Pusat Grosir Cililitan (PGC) nyaris ditabrak Kopaja 57 jurusan Kampung Rambutan – Blok M. Korban yang kaget pun langsung menggebrak bus 3/4 tersebut. “Dia teriak bawa mobilnya biasa saja dong,” kata Andini menirukan korban.
Tanpa disadari, mobil tersebut ternyata berisi penumpang dari salah satu ormas. Tanpa komando, penumpang yang ada langsung turun untuk menghakimi Reza. “Korban kabur melarikan diri namun dapat ditangkap gerombolan itu dan langsung memukulinya,” ujar Andini lagi.
Beruntung, tiga orang warga yang ada di sekitar dapat melerai aksi brutal kelompok ormas tersebut. Korban langsung dilarikan ke RS Budi Asih. “Korban pun saat ini masih shock dan sulit dimintai keterangan atas kasus pengeroyokan yang telah dialaminya,” imbuhnya.
Polisi juga masih memburu pelaku pengeroyokan tersebut. Kasus inipun saat ini masih ditangani oleh Polsek Kramatjati. “Saksi yang berjumlah tiga orang itu yang kita mintai informasinya untuk dapat meringkus pelaku,” tuturnya.
Editor : Dian Sukmawati
Even as a high school student, Dave Goldberg was urging female classmates to speak up. As a young dot-com executive, he had one girlfriend after another, but fell hard for a driven friend named Sheryl Sandberg, pining after her for years. After they wed, Mr. Goldberg pushed her to negotiate hard for high compensation and arranged his schedule so that he could be home with their children when she was traveling for work.
Mr. Goldberg, who died unexpectedly on Friday, was a genial, 47-year-old Silicon Valley entrepreneur who built his latest company, SurveyMonkey, from a modest enterprise to one recently valued by investors at $2 billion. But he was also perhaps the signature male feminist of his era: the first major chief executive in memory to spur his wife to become as successful in business as he was, and an essential figure in “Lean In,” Ms. Sandberg’s blockbuster guide to female achievement.
Over the weekend, even strangers were shocked at his death, both because of his relatively young age and because they knew of him as the living, breathing, car-pooling center of a new philosophy of two-career marriage.
“They were very much the role models for what this next generation wants to grapple with,” said Debora L. Spar, the president of Barnard College. In a 2011 commencement speech there, Ms. Sandberg told the graduates that whom they married would be their most important career decision.
In the play “The Heidi Chronicles,” revived on Broadway this spring, a male character who is the founder of a media company says that “I don’t want to come home to an A-plus,” explaining that his ambitions require him to marry an unthreatening helpmeet. Mr. Goldberg grew up to hold the opposite view, starting with his upbringing in progressive Minneapolis circles where “there was woman power in every aspect of our lives,” Jeffrey Dachis, a childhood friend, said in an interview.
The Goldberg parents read “The Feminine Mystique” together — in fact, Mr. Goldberg’s father introduced it to his wife, according to Ms. Sandberg’s book. In 1976, Paula Goldberg helped found a nonprofit to aid children with disabilities. Her husband, Mel, a law professor who taught at night, made the family breakfast at home.
Later, when Dave Goldberg was in high school and his prom date, Jill Chessen, stayed silent in a politics class, he chastised her afterward. He said, “You need to speak up,” Ms. Chessen recalled in an interview. “They need to hear your voice.”
Years later, when Karin Gilford, an early employee at Launch Media, Mr. Goldberg’s digital music company, became a mother, he knew exactly what to do. He kept giving her challenging assignments, she recalled, but also let her work from home one day a week. After Yahoo acquired Launch, Mr. Goldberg became known for distributing roses to all the women in the office on Valentine’s Day.
Ms. Sandberg, who often describes herself as bossy-in-a-good-way, enchanted him when they became friendly in the mid-1990s. He “was smitten with her,” Ms. Chessen remembered. Ms. Sandberg was dating someone else, but Mr. Goldberg still hung around, even helping her and her then-boyfriend move, recalled Bob Roback, a friend and co-founder of Launch. When they finally married in 2004, friends remember thinking how similar the two were, and that the qualities that might have made Ms. Sandberg intimidating to some men drew Mr. Goldberg to her even more.
Over the next decade, Mr. Goldberg and Ms. Sandberg pioneered new ways of capturing information online, had a son and then a daughter, became immensely wealthy, and hashed out their who-does-what-in-this-marriage issues. Mr. Goldberg’s commute from the Bay Area to Los Angeles became a strain, so he relocated, later joking that he “lost the coin flip” of where they would live. He paid the bills, she planned the birthday parties, and both often left their offices at 5:30 so they could eat dinner with their children before resuming work afterward.
Friends in Silicon Valley say they were careful to conduct their careers separately, politely refusing when outsiders would ask one about the other’s work: Ms. Sandberg’s role building Facebook into an information and advertising powerhouse, and Mr. Goldberg at SurveyMonkey, which made polling faster and cheaper. But privately, their work was intertwined. He often began statements to his team with the phrase “Well, Sheryl said” sharing her business advice. He counseled her, too, starting with her salary negotiations with Mark Zuckerberg.
“I wanted Mark to really feel he stretched to get Sheryl, because she was worth it,” Mr. Goldberg explained in a 2013 “60 Minutes” interview, his Minnesota accent and his smile intact as he offered a rare peek of the intersection of marriage and money at the top of corporate life.
While his wife grew increasingly outspoken about women’s advancement, Mr. Goldberg quietly advised the men in the office on family and partnership matters, an associate said. Six out of 16 members of SurveyMonkey’s management team are female, an almost unheard-of ratio among Silicon Valley “unicorns,” or companies valued at over $1 billion.
When Mellody Hobson, a friend and finance executive, wrote a chapter of “Lean In” about women of color for the college edition of the book, Mr. Goldberg gave her feedback on the draft, a clue to his deep involvement. He joked with Ms. Hobson that she was too long-winded, like Ms. Sandberg, but aside from that, he said he loved the chapter, she said in an interview.
By then, Mr. Goldberg was a figure of fascination who inspired a “where can I get one of those?” reaction among many of the women who had read the best seller “Lean In.” Some lamented that Ms. Sandberg’s advice hinged too much on marrying a Dave Goldberg, who was humble enough to plan around his wife, attentive enough to worry about which shoes his young daughter would wear, and rich enough to help pay for the help that made the family’s balancing act manageable.
Now that he is gone, and Ms. Sandberg goes from being half of a celebrated partnership to perhaps the business world’s most prominent single mother, the pages of “Lean In” carry a new sting of loss.
“We are never at 50-50 at any given moment — perfect equality is hard to define or sustain — but we allow the pendulum to swing back and forth between us,” she wrote in 2013, adding that they were looking forward to raising teenagers together.
“Fortunately, I have Dave to figure it out with me,” she wrote.