Arktik yak\u0131nlar\u0131ndaki so\u011fuk sularda bulunan Gr\u00f6nland k\u00f6pekbal\u0131klar\u0131, 400 y\u0131l\u0131 a\u015fk\u0131n bir \u00f6mre sahiptir ve bu da onlar\u0131 \u015fimdiye kadar ke\u015ffedilen en uzun ya\u015fayan omurgal\u0131lar yapar. “Bir kayadan biraz daha h\u0131zl\u0131” olan yava\u015f metabolizmalar\u0131, a\u015f\u0131r\u0131 uzun \u00f6m\u00fcrlerine katk\u0131da bulunur. Ancak, bu a\u011f\u0131r \u00e7ekim ya\u015fam ayn\u0131 zamanda, pop\u00fclasyonlar\u0131 azal\u0131rsa nesillerinin t\u00fckenme riskiyle kar\u015f\u0131 kar\u015f\u0131ya olduklar\u0131 anlam\u0131na gelir.<\/p>\n\n
Derin deniz ya\u015fam alanlar\u0131 ve nadirlikleri nedeniyle bu \u015fekilde adland\u0131r\u0131lan hayalet k\u00f6pekbal\u0131klar\u0131n\u0131n, kafalar\u0131nda geri \u00e7ekilebilir cinsel organlara sahip olduklar\u0131 yak\u0131n zamanda ke\u015ffedildi. Bu organlar\u0131n, erkek hayalet k\u00f6pekbal\u0131klar\u0131n\u0131n \u00e7iftle\u015fme s\u0131ras\u0131nda di\u015fileri kavramak i\u00e7in kulland\u0131\u011f\u0131 kancalar vard\u0131r; bu da di\u015filer i\u00e7in pek de ho\u015f bir deneyim olmad\u0131\u011f\u0131 bildirilmektedir. Di\u015fi hayalet k\u00f6pekbal\u0131klar\u0131, d\u00f6llenmek i\u00e7in do\u011fru zaman\u0131 bekleyerek, spermleri v\u00fccutlar\u0131ndaki \u00f6zel depolama keselerinde y\u0131llarca saklayabilirler.<\/p>\n\n
A\u011fustos 2017’de, koruma grubu Ocearch, New York sahili a\u00e7\u0131klar\u0131ndaki s\u0131\u011f sularda nadir g\u00f6r\u00fclen bir b\u00fcy\u00fck beyaz k\u00f6pekbal\u0131\u011f\u0131 kre\u015fi ke\u015ffetti. Kuzey Atlantik Okyanusu’nda bulunan ilk kre\u015fti ve ara\u015ft\u0131rmac\u0131lar k\u00f6pekbal\u0131klar\u0131n\u0131n ilk 20 y\u0131l\u0131n\u0131 burada ge\u00e7irdiklerine inan\u0131yor. Gen\u00e7 k\u00f6pekbal\u0131klar\u0131n\u0131n g\u00f6\u00e7 yollar\u0131 hakk\u0131nda \u00e7ok az \u015fey bilinmektedir, bu nedenle bu ke\u015fif \u00f6nemli bir at\u0131l\u0131m olarak kabul edilmektedir.<\/p>\n\n
Resif k\u00f6pekbal\u0131klar\u0131 genellikle habitatlar\u0131n\u0131n aslanlara benzer \u015fekilde alfa avc\u0131lar\u0131 olarak tasvir edilmi\u015ftir. Ancak ara\u015ft\u0131rmalar bu efsaneyi \u00e7\u00fcr\u00fctt\u00fc. \u00c7al\u0131\u015fmalar, k\u00f6pekbal\u0131klar\u0131n\u0131n avland\u0131\u011f\u0131 bir\u00e7ok b\u00f6lgede ot\u00e7ul bal\u0131klar\u0131n pop\u00fclasyon seviyelerinin \u00f6nemli \u00f6l\u00e7\u00fcde de\u011fi\u015fmedi\u011fini g\u00f6stermi\u015ftir; bu da k\u00f6pekbal\u0131klar\u0131n\u0131n \u00e7evreleri \u00fczerindeki etkinin daha \u00f6nce d\u00fc\u015f\u00fcn\u00fcld\u00fc\u011f\u00fcnden daha az oldu\u011funu g\u00f6stermektedir. Sadece kaplan k\u00f6pekbal\u0131\u011f\u0131 gibi en b\u00fcy\u00fck k\u00f6pekbal\u0131\u011f\u0131 t\u00fcrlerinden birka\u00e7\u0131 ger\u00e7ekten en \u00fcst avc\u0131 rol\u00fcn\u00fc \u00fcstlenmektedir.<\/p>\n\n
20 milyon y\u0131l \u00f6nce ya\u015fam\u0131\u015f, yeni tan\u0131mlanm\u0131\u015f dev bir k\u00f6pekbal\u0131\u011f\u0131 t\u00fcr\u00fc olan Megalolamna paradoxodon, bir araba b\u00fcy\u00fckl\u00fc\u011f\u00fcne kadar b\u00fcy\u00fcd\u00fc. Ara\u015ft\u0131rmac\u0131lar, uzunlu\u011funun yakla\u015f\u0131k 12 fit oldu\u011funu tahmin ettiler; bu da onu \u00e7o\u011fu insandan \u00e7ok daha b\u00fcy\u00fck ancak k\u00f6t\u00fc \u015f\u00f6hretli b\u00fcy\u00fck beyaz k\u00f6pekbal\u0131\u011f\u0131ndan daha k\u00fc\u00e7\u00fck yap\u0131yor. T\u00fcr, boyut olarak kendisinden be\u015f kat daha b\u00fcy\u00fck olan di\u011fer eski k\u00f6pekbal\u0131klar\u0131n\u0131n yak\u0131n akrabas\u0131 olabilir.<\/p>\n\n
Bir\u00e7ok k\u00f6pekbal\u0131\u011f\u0131 t\u00fcr\u00fc, etleri ve y\u00fczge\u00e7leri i\u00e7in yasad\u0131\u015f\u0131 bal\u0131k\u00e7\u0131l\u0131k ve di\u011fer bal\u0131k t\u00fcrlerini hedefleyen a\u011flarda yan avlanma nedeniyle tehdit alt\u0131ndad\u0131r. Bilim insanlar\u0131 tart\u0131\u015fmal\u0131 bir \u00e7\u00f6z\u00fcm \u00f6nerdiler: yasal k\u00f6pekbal\u0131\u011f\u0131 bal\u0131k\u00e7\u0131l\u0131\u011f\u0131n\u0131 te\u015fvik etmek. Bir \u00e7al\u0131\u015fma, k\u00f6pekbal\u0131\u011f\u0131 bal\u0131k\u00e7\u0131l\u0131\u011f\u0131n\u0131n yaln\u0131zca yakla\u015f\u0131k %4’\u00fcn\u00fcn \u015fu anda s\u00fcrd\u00fcr\u00fclebilir bir \u015fekilde y\u00f6netildi\u011fini ortaya \u00e7\u0131kard\u0131. Baz\u0131 k\u00f6pekbal\u0131klar\u0131n\u0131n ya\u015flar\u0131n\u0131 ve \u00fcreme d\u00f6ng\u00fclerini hesaba katan bir k\u00f6pekbal\u0131\u011f\u0131 bal\u0131k\u00e7\u0131l\u0131\u011f\u0131 politikas\u0131, k\u00f6pekbal\u0131\u011f\u0131 pop\u00fclasyonlar\u0131n\u0131n sa\u011fl\u0131kl\u0131 kalmas\u0131na yard\u0131mc\u0131 olabilir.<\/p>\n\n
Her y\u0131l, Kaliforniya’n\u0131n b\u00fcy\u00fck beyaz k\u00f6pekbal\u0131klar\u0131 okyanusta uzak bir noktaya gizemli bir hac ger\u00e7ekle\u015ftirir. Bilim insanlar\u0131 bu davran\u0131\u015f\u0131n nedenini \u00e7\u00f6zmeye \u00e7al\u0131\u015f\u0131yorlar. Biyolog Salvador Jorgensen, k\u00f6pekbal\u0131klar\u0131n\u0131n hareketlerini kaydetmek ve bu esrarengiz fenomen hakk\u0131nda bilgi edinmek i\u00e7in k\u00f6pekbal\u0131klar\u0131n\u0131n y\u00fczge\u00e7lerine tak\u0131labilir dayan\u0131kl\u0131 kameralar geli\u015ftirdi.<\/p>\n\n
Bal\u0131k\u00e7\u0131lar ve bilim insanlar\u0131 son y\u0131llarda giderek daha fazla iki ba\u015fl\u0131 k\u00f6pekbal\u0131\u011f\u0131yla kar\u015f\u0131la\u015fmaktad\u0131r. Mutasyonlardaki bu art\u0131\u015f\u0131n nedeni hala belirsizli\u011fini korumaktad\u0131r ancak baz\u0131 biyologlar bunun enfeksiyonlar, kirlilik veya a\u015f\u0131r\u0131 avlanma nedeniyle k\u00f6pekbal\u0131\u011f\u0131 pop\u00fclasyonlar\u0131n\u0131n azalmas\u0131yla ilgili olabilece\u011finden \u015f\u00fcphelenmektedir.<\/p>\n\n
So\u011fuk Sava\u015f s\u0131ras\u0131nda ABD Donanmas\u0131, k\u00f6pekbal\u0131klar\u0131n\u0131 silah olarak geli\u015ftirmek i\u00e7in gizli bir proje y\u00fcr\u00fctt\u00fc. Plan, k\u00f6pekbal\u0131klar\u0131n\u0131 bombalar ta\u015f\u0131yan hedeflerine y\u00f6nlendirmek ve onlar\u0131 patlatmak i\u00e7in elektrik \u015foklar\u0131 kullanmakt\u0131. 1958’den 1971’e kadar s\u00fcren proje nihayetinde ba\u015far\u0131s\u0131z oldu.<\/p>\n\n
Limon k\u00f6pekbal\u0131klar\u0131 dayan\u0131kl\u0131l\u0131klar\u0131yla bilinirler. Son bir \u00e7al\u0131\u015fma, midesini delen \u00e7elik bir bal\u0131k\u00e7\u0131l\u0131k ekipman\u0131 par\u00e7as\u0131 yutan bir limon k\u00f6pekbal\u0131\u011f\u0131n\u0131 belgeledi. K\u00f6pekbal\u0131\u011f\u0131 sadece yaralanmadan kurtulmakla kalmad\u0131, ayn\u0131 zamanda metal nesneyi derisi yoluyla d\u0131\u015far\u0131 atmay\u0131 da ba\u015fard\u0131. Ba\u015fka bir \u00e7al\u0131\u015fma, kaplan k\u00f6pekbal\u0131klar\u0131n\u0131n ku\u015flar, yarasalar, kirpiler, cips torbalar\u0131 ve hatta prezervatifler gibi \u00e7ok \u00e7e\u015fitli garip nesneleri t\u00fcketti\u011fini ortaya \u00e7\u0131kard\u0131.<\/p>","protected":false},"excerpt":{"rendered":"
K\u00f6pekbal\u0131klar\u0131: 10 B\u00fcy\u00fcleyici Ke\u015fif Gr\u00f6nland K\u00f6pekbal\u0131klar\u0131: En Uzun Ya\u015fayan Omurgal\u0131lar Arktik yak\u0131nlar\u0131ndaki so\u011fuk sularda bulunan Gr\u00f6nland k\u00f6pekbal\u0131klar\u0131, 400 y\u0131l\u0131 a\u015fk\u0131n bir \u00f6mre sahiptir ve bu da onlar\u0131 \u015fimdiye kadar ke\u015ffedilen…<\/p>\n","protected":false},"author":6,"featured_media":0,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[280],"tags":[265,73,401,1302,254],"class_list":["post-13634","post","type-post","status-publish","format-standard","hentry","category-zoology","tag-marine-life","tag-sharks","tag-conservation","tag-oceanography","tag-wildlife"],"_links":{"self":[{"href":"https:\/\/www.lifescienceart.com\/tr\/wp-json\/wp\/v2\/posts\/13634","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.lifescienceart.com\/tr\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.lifescienceart.com\/tr\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.lifescienceart.com\/tr\/wp-json\/wp\/v2\/users\/6"}],"replies":[{"embeddable":true,"href":"https:\/\/www.lifescienceart.com\/tr\/wp-json\/wp\/v2\/comments?post=13634"}],"version-history":[{"count":1,"href":"https:\/\/www.lifescienceart.com\/tr\/wp-json\/wp\/v2\/posts\/13634\/revisions"}],"predecessor-version":[{"id":13635,"href":"https:\/\/www.lifescienceart.com\/tr\/wp-json\/wp\/v2\/posts\/13634\/revisions\/13635"}],"wp:attachment":[{"href":"https:\/\/www.lifescienceart.com\/tr\/wp-json\/wp\/v2\/media?parent=13634"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.lifescienceart.com\/tr\/wp-json\/wp\/v2\/categories?post=13634"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.lifescienceart.com\/tr\/wp-json\/wp\/v2\/tags?post=13634"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}