{"id":698,"date":"2014-01-14T15:05:17","date_gmt":"2014-01-14T15:05:17","guid":{"rendered":"http:\/\/www.123fakta.com\/da\/?p=698"},"modified":"2026-03-19T10:38:48","modified_gmt":"2026-03-19T10:38:48","slug":"fakta-om-delfiner","status":"publish","type":"post","link":"https:\/\/www.123fakta.com\/se\/facts-about-dolphins","title":{"rendered":"Fakta om delfiner"},"content":{"rendered":"<h2>1. D\u00f6dande delfin<\/h2>\n<figure id=\"attachment_7844\" aria-describedby=\"caption-attachment-7844\" style=\"width: 590px\" class=\"wp-caption aligncenter\"><img loading=\"lazy\" decoding=\"async\" class=\"size-full wp-image-7844\" src=\"https:\/\/www.123fakta.com\/wp-content\/uploads\/delfiner-fakta-2.jpg\" alt=\"Fakta: Delfiner anv\u00e4nds f\u00f6r milit\u00e4ra \u00e4ndam\u00e5l av USA och Ryssland\" width=\"600\" height=\"721\" srcset=\"https:\/\/www.123fakta.com\/wp-content\/uploads\/delfiner-fakta-2.jpg 600w, https:\/\/www.123fakta.com\/wp-content\/uploads\/delfiner-fakta-2-250x300.jpg 250w, https:\/\/www.123fakta.com\/wp-content\/uploads\/delfiner-fakta-2-10x12.jpg 10w\" sizes=\"auto, (max-width: 600px) 100vw, 600px\" \/><figcaption id=\"caption-attachment-7844\" class=\"wp-caption-text\">Tillskrivning: Brien Aho - Wikipedia.org<\/figcaption><\/figure>\n<p>Rubriken \u00e4r kanske lite \u00f6verdriven, men det \u00e4r ett faktum att delfiner anv\u00e4nds av de amerikanska och ryska regeringarna f\u00f6r olika milit\u00e4ra uppgifter.<\/p>\n<p>USA har till och med ett s\u00e4rskilt program f\u00f6r detta \u00e4ndam\u00e5l, U.S. Navy Marine Mammal Program i San Diego, som omfattar 75 delfiner.<\/p>\n<p>Programmet testade mer \u00e4n 19 olika djurarter (inklusive n\u00e5gra <a href=\"https:\/\/www.123fakta.com\/se\/fakta-om-hajar\/\">Hajar<\/a> och <a href=\"https:\/\/www.123fakta.com\/se\/fakta-om-faglar\/\">f\u00e5glar<\/a>) och kom fram till att delfiner och sj\u00f6lejon \u00e4r de l\u00e4mpligaste djuren. Delfiner \u00e4r s\u00e4rskilt anv\u00e4ndbara p\u00e5 grund av sin h\u00f6gt utvecklade biosonar, medan sj\u00f6lejonens styrka \u00e4r deras exceptionella syn (under vattnet).<\/p>\n<p>\u00c4ven om delfinernas exakta funktioner \u00e4r milit\u00e4ra hemligheter, tyder de flesta spekulationer p\u00e5 att delfinerna anv\u00e4nds f\u00f6r f\u00f6ljande uppgifter:<\/p>\n<ul>\n<li>S\u00f6k efter och f\u00f6rst\u00f6r fiendens ub\u00e5tar, fartyg etc. med kamikaze-metoder<\/li>\n<li>Hitta utl\u00e4ndska sj\u00f6minor, dykare, ub\u00e5tar etc.<\/li>\n<li>Hitta skadade dykare<\/li>\n<\/ul>\n<p>\u00c4ven om ovanst\u00e5ende uppgifter inte \u00e4r helt sanna - eftersom de \u00e4r hemliga - finns det en god chans att delfiner utf\u00f6r n\u00e5gra av dessa uppgifter. Den amerikanska flottan har bekr\u00e4ftat att de anv\u00e4nder sina delfiner f\u00f6r att hitta sj\u00f6minor, men f\u00f6rnekar att delfinerna tr\u00e4nas f\u00f6r att skada m\u00e4nniskor eller fartyg.<\/p>\n<p>Delfiner tr\u00e4nas ocks\u00e5 enligt samma principer som polis- och jakthundar, d\u00e4r de f\u00e5r en bel\u00f6ning (t.ex. en <a href=\"https:\/\/www.123fakta.com\/se\/fakta-om-fisk\/\">fisk<\/a>) n\u00e4r de utf\u00f6r en uppgift korrekt.<\/p>\n<h2>2. Rosa delfiner<\/h2>\n<figure id=\"attachment_7845\" aria-describedby=\"caption-attachment-7845\" style=\"width: 790px\" class=\"wp-caption aligncenter\"><img loading=\"lazy\" decoding=\"async\" class=\"size-full wp-image-7845\" src=\"https:\/\/www.123fakta.com\/wp-content\/uploads\/lyseroede-delfiner-2.jpg\" alt=\"Fakta: Det finns 2 arter av rosa delfiner\" width=\"800\" height=\"361\" srcset=\"https:\/\/www.123fakta.com\/wp-content\/uploads\/lyseroede-delfiner-2.jpg 800w, https:\/\/www.123fakta.com\/wp-content\/uploads\/lyseroede-delfiner-2-300x135.jpg 300w, https:\/\/www.123fakta.com\/wp-content\/uploads\/lyseroede-delfiner-2-768x347.jpg 768w, https:\/\/www.123fakta.com\/wp-content\/uploads\/lyseroede-delfiner-2-18x8.jpg 18w\" sizes=\"auto, (max-width: 800px) 100vw, 800px\" \/><figcaption id=\"caption-attachment-7845\" class=\"wp-caption-text\">Upphovsr\u00e4tt: lubasi - Flickr.com<\/figcaption><\/figure>\n<div>\n<p>Det finns inte bara rosa delfiner, det finns tv\u00e5 typer:<\/p>\n<ul>\n<li><strong>Indo-Pacifik kn\u00f6lvalsdelfin<\/strong>\u00a0<em>(Sousa chinensis)<\/em>\u00a0som lever i syd\u00f6stra Asien och norra Australien<\/li>\n<li><strong>Amazonas delfin<\/strong>\u00a0<em>(Inia geoffrensis)<\/em>\u00a0som lever i flodsystem i den nordv\u00e4stra delen av Sydamerika och d\u00e4rf\u00f6r finns i l\u00e4nderna Brasilien, Peru, Bolivia, Ecuador, Colombia och Venezuela.<\/li>\n<\/ul>\n<p>Rosa delfiner \u00e4r dock inte rosa under hela sitt liv; de f\u00f6ds svarta, skiftar till gr\u00e5tt och senare till ljusr\u00f6tt med gr\u00e5 fl\u00e4ckar medan de fortfarande \u00e4r unga. Som vuxna \u00e4r de vita.<\/p>\n<\/div>\n<h2>3. Delfiner beg\u00e5r sj\u00e4lvmord<\/h2>\n<p>Delfiner i f\u00e5ngenskap beg\u00e5r sj\u00e4lvmord - och de g\u00f6r det p\u00e5 en m\u00e4ngd olika s\u00e4tt, fr\u00e5n att v\u00e4gra \u00e4ta till att sl\u00e5 huvudet i v\u00e4ggen!<\/p>\n<p>Vissa biologer tror att detta beteende beror p\u00e5 att delfinerna har sv\u00e5rt att anpassa sig till nya milj\u00f6er och matm\u00f6nster. Ett exempel p\u00e5 detta kan vara skillnaden mellan att leva i det \u00f6ppna havet och i en liten, sluten tank. Ett annat exempel kan vara att delfiner i naturen \u00e4r vana vid att jaga och f\u00e5nga sin egen mat, medan de i f\u00e5ngenskap pl\u00f6tsligt f\u00e5r allt \"serverat\" av m\u00e4nniskor.<\/p>\n<p>F\u00f6r \u00f6vrigt \u00e4r det inte alla delfiner som sl\u00e5r huvudet i v\u00e4ggen som beg\u00e5r sj\u00e4lvmord. De kan bli s\u00e5 upphetsade eller uppslukade av sin lek att de av misstag sl\u00e5r i en v\u00e4gg, poolkant osv. - i vilket fall det \u00e4r mer av en olycka.<\/p>\n<h2>4. V\u00e4rldens l\u00e4ngsta man har r\u00e4ddat 2 delfiner<\/h2>\n<figure id=\"attachment_7846\" aria-describedby=\"caption-attachment-7846\" style=\"width: 590px\" class=\"wp-caption aligncenter\"><img loading=\"lazy\" decoding=\"async\" class=\"size-full wp-image-7846\" src=\"https:\/\/www.123fakta.com\/wp-content\/uploads\/bao-xishun-2.jpg\" alt=\"Fakta: V\u00e4rldens l\u00e4ngsta man (Bao Xishun) r\u00e4ddade 2 delfiner 2006\" width=\"600\" height=\"450\" srcset=\"https:\/\/www.123fakta.com\/wp-content\/uploads\/bao-xishun-2.jpg 600w, https:\/\/www.123fakta.com\/wp-content\/uploads\/bao-xishun-2-300x225.jpg 300w, https:\/\/www.123fakta.com\/wp-content\/uploads\/bao-xishun-2-16x12.jpg 16w\" sizes=\"auto, (max-width: 600px) 100vw, 600px\" \/><figcaption id=\"caption-attachment-7846\" class=\"wp-caption-text\">Tillskrivning: Joachim Bowin - Wikipedia.org<\/figcaption><\/figure>\n<div>\n<p>V\u00e4rldens l\u00e4ngsta man\u00a0<a href=\"http:\/\/news.bbc.co.uk\/2\/hi\/asia-pacific\/6178659.stm\" rel=\"noopener noreferrer\">sparades under 2006<\/a>\u00a0Tv\u00e5 delfiner fr\u00e5n d\u00f6den!<\/p>\n<p>I ett akvarium i staden Fushun i nord\u00f6stra Kina hade tv\u00e5 delfiner svalt plastbitar.<\/p>\n<p>Veterin\u00e4rerna hade utan framg\u00e5ng f\u00f6rs\u00f6kt avl\u00e4gsna delarna med hj\u00e4lp av instrument, vilket bara fick delfinerna att dra ihop magen.<\/p>\n<p>D\u00e4rf\u00f6r kontaktade de v\u00e4rldens l\u00e4ngsta man, Bao Xishun, som anv\u00e4nde sina l\u00e5nga armar f\u00f6r att avl\u00e4gsna de flesta plastbitarna och r\u00e4dda de stackars delfinerna.<\/p>\n<\/div>\n<h2>5. Delfinernas intelligens<\/h2>\n<figure id=\"attachment_7847\" aria-describedby=\"caption-attachment-7847\" style=\"width: 590px\" class=\"wp-caption aligncenter\"><img loading=\"lazy\" decoding=\"async\" class=\"size-full wp-image-7847\" src=\"https:\/\/www.123fakta.com\/wp-content\/uploads\/delfin-flipper-2.jpg\" alt=\"Fakta: Filmer - som &quot;Flipper&quot; - har bidragit till att forma v\u00e5r uppfattning om delfiner som intelligenta djur\" width=\"600\" height=\"606\" srcset=\"https:\/\/www.123fakta.com\/wp-content\/uploads\/delfin-flipper-2.jpg 600w, https:\/\/www.123fakta.com\/wp-content\/uploads\/delfin-flipper-2-297x300.jpg 297w, https:\/\/www.123fakta.com\/wp-content\/uploads\/delfin-flipper-2-12x12.jpg 12w\" sizes=\"auto, (max-width: 600px) 100vw, 600px\" \/><figcaption id=\"caption-attachment-7847\" class=\"wp-caption-text\">Tillskrivning: Ivan Tors Productions<br \/>Metro-Goldwyn-Mayer - Wikipedia.org<\/figcaption><\/figure>\n<p>Sedan 1950-talet har de flesta m\u00e4nniskor haft en uppfattning om delfiner som mycket intelligenta varelser. Detta beror fr\u00e4mst p\u00e5 delfinernas naturliga lekfulla beteende, d\u00e4r de hoppar, g\u00f6r tricks och i allm\u00e4nhet \u00e4r mycket sociala och v\u00e4lkomnande mot m\u00e4nniskor.<\/p>\n<p>Dessutom h\u00e4rr\u00f6r uppfattningen delvis fr\u00e5n neurologens\u00a0<a href=\"http:\/\/mentalfloss.com\/article\/26483\/4-bizarre-experiments-should-never-be-repeated\" rel=\"noopener noreferrer\">John Lillys experiment<\/a>d\u00e4r han f\u00f6rs\u00f6kte kommunicera med delfiner med hj\u00e4lp av LSD, vilket - b\u00e5de d\u00e5 och idag - anses vara ett extremt ovetenskapligt tillv\u00e4gag\u00e5ngss\u00e4tt.<\/p>\n<p>En tredje faktor som bidrar till v\u00e5r uppfattning om delfiner som intelligenta djur \u00e4r deras roller i olika b\u00f6cker och filmer fr\u00e5n de senaste decennierna. Bra exempel \u00e4r filmerna \"Flipper\" och \"Free Willy\".<\/p>\n<p>Dessutom anv\u00e4nder vissa storleken p\u00e5 delfinernas hj\u00e4rnor som ett argument f\u00f6r deras h\u00f6ga intelligens:<\/p>\n<ul>\n<li>M\u00e4nniskans hj\u00e4rna = 2% av v\u00e5r kroppsvikt<\/li>\n<li>Schimpanshj\u00e4rna = 0,9% av kroppsvikten<\/li>\n<li><a href=\"https:\/\/www.123fakta.com\/se\/fakta-om-elefanter\/\">Elefanthj\u00e4rna<\/a> = 0,2% av kroppsvikten<\/li>\n<li>Delfinhj\u00e4rna = 0,9% av kroppsvikten<\/li>\n<\/ul>\n<p>Vid f\u00f6rsta anblicken kan man tro att delfiner \u00e4r intelligenta eftersom de har relativt stora hj\u00e4rnor - men kan man j\u00e4mf\u00f6ra intelligens och hj\u00e4rnstorlek hos vattenlevande djur och landlevande djur?<\/p>\n<p>En forskare har ocks\u00e5 betonat att \u00e4ven en <a href=\"https:\/\/www.123fakta.com\/se\/fakta-om-guldfiskar\/\">Guldfisk<\/a> \u00e4r smartare \u00e4n en delfin p\u00e5 vissa s\u00e4tt: Om du l\u00e4gger en guldfisk i en sk\u00e5l med vatten kommer den omedelbart att f\u00f6rs\u00f6ka fly genom att hoppa upp ur sk\u00e5len. Men om en delfin f\u00e5ngas i ett n\u00e4t g\u00f6r den inget f\u00f6rs\u00f6k att fly.<\/p>\n<p>Idag finns det d\u00e4rf\u00f6r\u00a0<a href=\"http:\/\/www.spiegel.de\/international\/world\/scientists-dolphin-intelligence-may-be-overrated-a-924614.html\" rel=\"noopener noreferrer\">tvivel om hur intelligenta delfiner \u00e4r<\/a>\u00a0faktiskt \u00e4r och det vore fel att anta att delfiner \u00e4r intelligenta bara f\u00f6r att vi m\u00e4nniskor uppfattar dem som det. Dessutom \u00e4r v\u00e5r allm\u00e4nna kunskap om hj\u00e4rnans funktion - som inkluderar intelligens - fortfarande mycket begr\u00e4nsad. Till r\u00e5ga p\u00e5 allt kan vi inte ens m\u00e4ta v\u00e5r egen intelligens ordentligt!<\/p>\n<h2>6. Delfiners beteende<\/h2>\n<figure id=\"attachment_7848\" aria-describedby=\"caption-attachment-7848\" style=\"width: 790px\" class=\"wp-caption aligncenter\"><img loading=\"lazy\" decoding=\"async\" class=\"size-full wp-image-7848\" src=\"https:\/\/www.123fakta.com\/wp-content\/uploads\/delfinflok-2.jpg\" alt=\"Fakta: Delfiner \u00e4r sociala flockdjur\" width=\"800\" height=\"600\" srcset=\"https:\/\/www.123fakta.com\/wp-content\/uploads\/delfinflok-2.jpg 800w, https:\/\/www.123fakta.com\/wp-content\/uploads\/delfinflok-2-300x225.jpg 300w, https:\/\/www.123fakta.com\/wp-content\/uploads\/delfinflok-2-768x576.jpg 768w, https:\/\/www.123fakta.com\/wp-content\/uploads\/delfinflok-2-16x12.jpg 16w\" sizes=\"auto, (max-width: 800px) 100vw, 800px\" \/><figcaption id=\"caption-attachment-7848\" class=\"wp-caption-text\">Tillskrivning: Serguei S. Dukachev - Wikipedia.org<\/figcaption><\/figure>\n<p>Delfiner \u00e4r v\u00e4lk\u00e4nda f\u00f6r sin smidighet och sitt lekfulla beteende, vilket g\u00f6r dem till n\u00e5gra av de mest popul\u00e4ra vattenlevande djuren i v\u00e4rlden. M\u00e5nga arter hoppar upp ur vattnet - \u00e4ven i vertikalt l\u00e4ge - f\u00f6r att se omv\u00e4rlden, f\u00f6lja efter fartyg, simma synkront osv.<\/p>\n<p>Delfiner lever i sociala grupper som kan variera i storlek fr\u00e5n fem till flera hundra individer (ibland till och med tusentals under korta tidsperioder).<\/p>\n<p>De anv\u00e4nder sitt biosonar f\u00f6r att hitta sina byten och jagar ofta i flock, kring fiskstim och v\u00e4xlar mellan att simma in i stimmet och \"ta f\u00f6r sig av maten\".<\/p>\n<p>Delfiner till\u00e5ter ocks\u00e5 andra att dra nytta av de fiskar de omger sig med - inklusive f\u00e5glar, <a href=\"https:\/\/www.123fakta.com\/se\/fakta-om-valar\/\">valar<\/a> och fiskeb\u00e5tar. P\u00e5 samma s\u00e4tt finns det ocks\u00e5 fiskare som samarbetar med delfiner; delfinerna driver fisken mot fiskeb\u00e5ten och \u00e4ter upp den fisk som undkommer fiskarens n\u00e4t.<\/p>\n<p>Delfiner parar sig under hela \u00e5ret. Dr\u00e4ktighetstiden \u00e4r 9-17 m\u00e5nader beroende p\u00e5 art. N\u00e4r f\u00f6dseln n\u00e4rmar sig tar honan avst\u00e5nd fr\u00e5n flocken och beger sig upp till ytan. Hon f\u00f6der vanligtvis 1 kalv per dr\u00e4ktighet - i s\u00e4llsynta fall kan \u00e4ven tvillingar f\u00f6rekomma. Den nyf\u00f6dda delfinen diar i 11 m\u00e5nader till 2 \u00e5r och stannar hos sin mamma tills den \u00e4r 3-8 \u00e5r gammal.<\/p>\n<h2>7. S\u00f6mn<\/h2>\n<figure id=\"attachment_7849\" aria-describedby=\"caption-attachment-7849\" style=\"width: 790px\" class=\"wp-caption aligncenter\"><img loading=\"lazy\" decoding=\"async\" class=\"size-full wp-image-7849\" src=\"https:\/\/www.123fakta.com\/wp-content\/uploads\/delfiner-soevn-2.jpg\" alt=\"Fakta: Delfiners s\u00f6mnm\u00f6nster f\u00f6r\u00e4ndras beroende p\u00e5 om de lever i naturen eller i f\u00e5ngenskap\" width=\"800\" height=\"680\" srcset=\"https:\/\/www.123fakta.com\/wp-content\/uploads\/delfiner-soevn-2.jpg 800w, https:\/\/www.123fakta.com\/wp-content\/uploads\/delfiner-soevn-2-300x255.jpg 300w, https:\/\/www.123fakta.com\/wp-content\/uploads\/delfiner-soevn-2-768x653.jpg 768w, https:\/\/www.123fakta.com\/wp-content\/uploads\/delfiner-soevn-2-14x12.jpg 14w\" sizes=\"auto, (max-width: 800px) 100vw, 800px\" \/><figcaption id=\"caption-attachment-7849\" class=\"wp-caption-text\">Tillskrivning: Amirki - Wikipedia.org<\/figcaption><\/figure>\n<p><strong>Delfiner som lever i det vilda<\/strong>m\u00e5ste vara vid medvetande f\u00f6r att kunna andas. Det inneb\u00e4r att de inte kan sova som m\u00e4nniskor, eftersom de d\u00e5 skulle kv\u00e4vas! Delfinernas \"l\u00f6sning\" p\u00e5 detta \u00e4r att de bara l\u00e5ter en hj\u00e4rnhalva sova \u00e5t g\u00e5ngen (detta har uppm\u00e4tts genom skanning av delfinhj\u00e4rnan).<\/p>\n<p>Det finns i princip 3 s\u00e4tt som en delfin kan sova p\u00e5:<\/p>\n<ol>\n<li><strong>Simma mycket l\u00e5ngsamt<\/strong>\u00a0och ibland stiger upp till ytan f\u00f6r att dra in luft<\/li>\n<li><strong>Flyta p\u00e5 ytan<\/strong>\u00a0med andningsh\u00e5let ovanf\u00f6r vattenytan<\/li>\n<li><strong>H\u00e5lla sig p\u00e5 botten<\/strong>\u00a0(endast p\u00e5 grunt vatten) och simmar ibland upp till ytan f\u00f6r att h\u00e4mta luft<\/li>\n<\/ol>\n<p>Delfiner sover ungef\u00e4r 8 timmar per dygn p\u00e5 dessa s\u00e4tt.<\/p>\n<p><strong>Delfiner i f\u00e5ngenskap<\/strong>\u00a0kan - till skillnad fr\u00e5n vilda delfiner - sova utan att vara vid medvetande och d\u00e4rmed \"st\u00e4nga av\" b\u00e5da hj\u00e4rnhalvorna.<\/p>\n<p>H\u00e4r sker andningen automatiskt och delfinens svans r\u00f6r sig reflexm\u00e4ssigt f\u00f6r att h\u00e5lla andningsh\u00e5let ovanf\u00f6r vattenytan om det beh\u00f6vs.<\/p>\n<h2>8. Delfiners livsl\u00e4ngd<\/h2>\n<figure id=\"attachment_7850\" aria-describedby=\"caption-attachment-7850\" style=\"width: 290px\" class=\"wp-caption aligncenter\"><img loading=\"lazy\" decoding=\"async\" class=\"size-full wp-image-7850\" src=\"https:\/\/www.123fakta.com\/wp-content\/uploads\/oeresvin-1.jpg\" alt=\"Fakta: Flasknosdelfiner \u00e4r den mest f\u00f6rekommande delfinarten p\u00e5 jorden\" width=\"300\" height=\"198\" srcset=\"https:\/\/www.123fakta.com\/wp-content\/uploads\/oeresvin-1.jpg 300w, https:\/\/www.123fakta.com\/wp-content\/uploads\/oeresvin-1-18x12.jpg 18w\" sizes=\"auto, (max-width: 300px) 100vw, 300px\" \/><figcaption id=\"caption-attachment-7850\" class=\"wp-caption-text\">Tillskrivning: Serguei S. Dukachev - Wikipedia.org<\/figcaption><\/figure>\n<div>\n<p>De mest utbredda och v\u00e4lk\u00e4nda delfinarterna \u00e4r\u00a0<em>sj\u00f6borre<\/em>\u00a0(Tursiops truncatus), som ocks\u00e5 finns i nordiska vatten. Flasknosdelfiner blir som mest 50 \u00e5r gamla.<\/p>\n<p>Den genomsnittliga livsl\u00e4ngden varierar dock kraftigt mellan olika arter och livsmilj\u00f6er, och ber\u00e4knas med en formel som kallas ASR (Annual Survival Rate). Till exempel lever vissa delfiner i genomsnitt 10 \u00e5r, medan andra lever 25 \u00e5r. Den genomsnittliga livsl\u00e4ngden f\u00f6r alla delfiner uppskattas till mellan 17 och 25 \u00e5r.<\/p>\n<p>Livsl\u00e4ngden f\u00f6r enskilda delfiner kan fastst\u00e4llas f\u00f6r de flesta arter genom att analysera delfinens t\u00e4nder.<\/p>\n<p>Delfiner i f\u00e5ngenskap lever ibland n\u00e5got l\u00e4ngre \u00e4n delfiner i det vilda eftersom de skyddas fr\u00e5n <a href=\"https:\/\/www.123fakta.com\/se\/fakta-om-rovdjur\/\">Rovdjur<\/a>, ges medicin, skyddas fr\u00e5n f\u00f6roreningar osv. Delfiner i f\u00e5ngenskap lever dock inte till en mycket h\u00f6g \u00e5lder (t.ex. 50 \u00e5r); denna \u00e5lder uppn\u00e5s endast i det vilda.<\/p>\n<\/div>\n<h2>Annan fakta om delfiner<\/h2>\n<ul>\n<li><strong>Mat:<\/strong>\u00a0En vuxen delfin \u00e4ter varje dag 4-9% av sin kroppsvikt i form av fisk, bl\u00e4ckfisk och kr\u00e4ftdjur. En delfin som v\u00e4ger 250 kg \u00e4ter d\u00e4rf\u00f6r 10-22,5 kg mat per dag.<\/li>\n<li><strong>Dykning:<\/strong>\u00a0Delfiner kan dyka till ett djup av 300 meter (det \u00e4r i alla fall det djupaste som uppm\u00e4tts f\u00f6r flasknosdelfiner)<\/li>\n<li><strong>Salt och s\u00f6tvatten:<\/strong>\u00a0Delfiner dricker inte saltvatten, \u00e4ven om de flesta av dem lever i det (det \u00e4r f\u00f6r salt!). De flesta av deras v\u00e4tskor kommer fr\u00e5n maten. S\u00f6tvattensdelfiner finns fr\u00e4mst i Amazonas (se \"2. Rosa delfiner\" ovan)<\/li>\n<li><strong>Orcas:<\/strong>\u00a0Sp\u00e4ckhuggaren (Orcinus orca) \u00e4r en delfinart - faktiskt den st\u00f6rsta delfinarten i v\u00e4rlden. Sp\u00e4ckhuggare kan bli upp till 80 \u00e5r gamla<\/li>\n<li><strong>Kommunikation:<\/strong>\u00a0Delfiner kommunicerar med ljud som f\u00f6r oss l\u00e5ter som klickande eller visslande<\/li>\n<li><strong>Utrotning:<\/strong>\u00a0Vissa delfinarter \u00e4r utrotningshotade - fr\u00e4mst p\u00e5 grund av fiske<\/li>\n<li><strong>T\u00e4nder:<\/strong>\u00a0Delfiner har 100 t\u00e4nder - eller fler. Men de anv\u00e4nder dem inte f\u00f6r att tugga sin mat, utan f\u00f6r att f\u00e5nga och h\u00e5lla fast sina byten<\/li>\n<\/ul>","protected":false},"excerpt":{"rendered":"<p>1. Killer Dolphin Rubriken \u00e4r kanske lite \u00f6verdriven, men det \u00e4r ett faktum att delfiner anv\u00e4nds av de amerikanska och ryska regeringarna f\u00f6r olika milit\u00e4ra uppgifter. USA har till och med ett s\u00e4rskilt program f\u00f6r detta \u00e4ndam\u00e5l som heter U.S. Navy Marine Mammal Program i San Diego, d\u00e4r 75 delfiner ing\u00e5r. Det ... <a title=\"Fakta om delfiner\" class=\"read-more\" href=\"https:\/\/www.123fakta.com\/se\/facts-about-dolphins\" aria-label=\"L\u00e4s mer om Fakta om delfiner\">L\u00e4s mer<\/a><\/p>","protected":false},"author":1,"featured_media":7831,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"cybocfi_hide_featured_image":"","footnotes":""},"categories":[67,74],"tags":[120],"class_list":["post-698","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-animals","category-aquatic-animals","tag-adsense"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.6 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Dolphins - Facts: Intelligence, communication, behavior, etc.<\/title>\n<meta name=\"description\" content=\"Fact: Dolphins are used for military purposes by the US and Russia. 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