{"id":542,"date":"2014-10-18T20:52:28","date_gmt":"2014-10-18T20:52:28","guid":{"rendered":"https:\/\/www.step3.net\/?p=542"},"modified":"2026-07-25T07:49:21","modified_gmt":"2026-07-25T07:49:21","slug":"%e3%81%aa%e3%81%9e%e3%81%ae%e6%98%9f%e3%83%a1%e3%83%8d%e3%82%b7%e3%82%b9","status":"publish","type":"post","link":"https:\/\/www.step3.net\/?p=542","title":{"rendered":"\u306a\u305e\u306e\u661f\u30e1\u30cd\u30b7\u30b9"},"content":{"rendered":"<p>\u5730\u8cea\u5b66\u8005\u3001\u53e4\u751f\u7269\u5b66\u8005\u304c\u305a\u30fc\u3063\u3068\u53e4\u3044\u5730\u7403\u306e\u5730\u5c64\u3092\u8abf\u3079\u3066\u3044\u304f\u3068\u3001\u5730\u5c64\u306e\u4e2d\u306b\u751f\u7269\u306e\u6b7b\u9ab8\u304c\u307b\u3068\u3093\u3069\u307f\u3089\u308c\u306a\u304f\u306a\u308b\u5927\u91cf\u7d76\u6ec5\u304c\u5468\u671f\u7684\u306b\u3042\u308b\u305d\u3046\u3067\u3059\u3002\u304a\u304a\u3088\u305d\uff12\uff16\u4e07\u5e74\u3054\u3068\u3002<br \/>\n<img decoding=\"async\" alt=\"Phanerozoic_biodiversityshadow\" title=\"Phanerozoic_biodiversityshadow\" src=\"https:\/\/www.step3.net\/wp-content\/uploads\/2026\/07\/phanerozoic_biodiversityshadow.png\" border=\"0\"  \/><br \/>\nQuoted from &#8220;Biodiversity during the Phanerozoic&#8221; in Wikipedia<br \/>\n\u4e00\u65b9\u3001\u6050\u7adc\u304c\u7d76\u6ec5\u3057\u305f\u6642\u671f\u306e\u5730\u5c64\u306b\u306f\u3001\u5730\u7403\u306b\u306f\u3042\u308a\u5f97\u306a\u3044\u91cf\u306e\u30a4\u30ea\u30b8\u30a6\u30e0\u3001\u4e88\u60f3\u3055\u308c\u308b\u91cf\u306e300\u500d\u3001\u304c\u5b58\u5728\u3057\u3066\u3044\u308b\u305d\u3046\u3067\u3059\u3002\u3057\u305f\u304c\u3063\u3066\u3001\u6050\u7adc\u304c\u7d76\u6ec5\u3057\u305f\u539f\u56e0\u3068\u3057\u3066\u73fe\u4ee3\u4fe1\u7528\u3055\u308c\u3066\u3044\u308b\u306e\u306f\u3001\u5730\u7403\u306b\u5c0f\u60d1\u661f\u304c\u885d\u7a81\u3057\u305f\u305f\u3081\u3067\u3042\u308b\u3053\u3068\u3001\u305d\u306e\u5c0f\u60d1\u661f\u304c\u885d\u7a81\u3057\u305f\u3068\u304d\u306b\u3067\u304d\u305f\u306e\u304c\u3001\u30e6\u30ab\u30bf\u30f3\u534a\u5cf6\u306e\u30c1\u30af\u30b7\u30e5\u30eb\u30fc\u30d6\u30fb\u30af\u30ec\u30fc\u30bf\u3067\u3042\u308b\u3053\u3068\u3092\u3054\u5b58\u3058\u306e\u4eba\u3082\u591a\u3044\u3067\u3057\u3087\u3046\u3002<br \/>\n<img decoding=\"async\" alt=\"Chicxulubanomalyshadow\" title=\"Chicxulubanomalyshadow\" src=\"https:\/\/www.step3.net\/wp-content\/uploads\/2026\/07\/chicxulubanomalyshadow.jpg\" border=\"0\"  \/><br \/>\n\u3067\u306f\u3001\u306a\u305c\u3001\u305d\u306e\u5c0f\u60d1\u661f\u304c\u5730\u7403\u306b\u885d\u7a81\u3057\u305f\u306e\u304b\uff1f\u5730\u7403\u306b\u96f7\u3092\u4e0b\u308d\u3059\u795e\u306e\u3088\u3046\u306a\u661f\u304c\u3001\u5b58\u5728\u3057\u3066\u3044\u308b\u304b\u3089\u3060\u3002<br \/>\n\u3068\u4e3b\u5f35\u3057\u3066\u3044\u308b\u4eba\u305f\u3061\u304c\u540d\u4ed8\u3051\u3066\u3044\u308b\u306e\u304c\u3001<a href=\"http:\/\/ja.wikipedia.org\/wiki\/\u30cd\u30e1\u30b7\u30b9_(\u6052\u661f)\">\u592a\u967d\u306e\u4f34\u661f\u3067\u3042\u308b\u300c\u30e1\u30cd\u30b7\u30b9\u300d<\/a>\u3067\u3059\u3002<br \/>\n\u592a\u967d\u306e\u3088\u3046\u306a\u6052\u661f\u306f\u3001\u5358\u72ec\u3067\u5b58\u5728\u3057\u3066\u3044\u308b\u3053\u3068\u304c\u3081\u305a\u3089\u3057\u304f\u3001\u666e\u901a\u3001\u3082\u3046\u4e00\u3064\u6052\u661f\u3092\u4f34\u3063\u305f\u4e8c\u91cd\u661f\u7cfb\u3067\u3042\u308b\u3053\u3068\u304c\u591a\u3044\u305d\u3046\u3067\u3059\u3002\u30b9\u30bf\u30fc\u30a6\u30a9\u30fc\u30ba\u3067\u3067\u3066\u3044\u308b\u60d1\u661f\u30bf\u30c8\u30a6\u30a3\u30f3\u304c\u305d\u3046\u3067\u3057\u305f\u306d\u3002\u5730\u7403\u306e\u591c\u660e\u3051\u306f\u6771\u304b\u3089\u592a\u967d\u304c\u6607\u308b\u3060\u3051\u3001\u897f\u306e\u7a7a\u306b\u3082\u3046\u4e00\u3064\u306e\u661f\u304c\u6c88\u3080\u3088\u3046\u306a\u3001\u4f34\u661f\u304c\u3042\u308b\u3053\u3068\u306a\u3093\u3067\u3042\u308a\u3048\u306a\u3044\u3067\u3059\u3002<br \/>\n\u3057\u304b\u3057\u3001\u3053\u306e\u4f34\u661f\u306f\u8ecc\u9053\u304c\u304a\u305d\u308d\u3057\u304f\u9577\u3044\u6955\u5186\u8ecc\u9053\u3067\u3042\u308a\u3001\u305d\u306e\u5468\u671f\u304c26\u4e07\u5e74\u3067\u3042\u308b\u306a\u3089\u3070\u4f55\u304c\u8d77\u304d\u3048\u308b\u306e\u304b\uff1f\u305d\u308c\u3092\u8003\u3048\u305f\u4eba\u304c\u3044\u307e\u3057\u305f\u3002\u305d\u306e\u4f34\u661f\u304c\u3001\u706b\u661f\u3068\u6728\u661f\u306e\u9593\u306e\u5c0f\u60d1\u661f\u5e2f\u306e\u5c0f\u60d1\u661f\u306e\u8ecc\u9053\u306b\u5f71\u97ff\u3092\u3042\u305f\u3048\u3001\u5c0f\u60d1\u661f\u304c\u5730\u7403\u306b\u843d\u3061\u3066\u304f\u308b\u3002\u305d\u306e\u306a\u8a71\u3067\u3059\u3002\u305d\u3046\u3044\u3048\u3070\u3001\u6570\u5e74\u524d\u3001\u6728\u661f\u306b\u843d\u3061\u3066\u3044\u3063\u305f\u30b7\u30e5\u30fc\u30e1\u30fc\u30ab\u30fc\u5f57\u661f\u304c\u8a18\u61b6\u306b\u65b0\u3057\u3044\u3067\u3059\u306d\u3002<br \/>\n\u3068\u3044\u3046\u3053\u3068\u3067\u3001\u79cb\u306e\u591c\u9577\u3001\u4eca\u3001\u3053\u308c\u306b\u95a2\u3059\u308b\u672c\u3092\u8aad\u3093\u3067\u3044\u307e\u3059\u3002<br \/>\n\u30df\u30b9\u30c6\u30ea\u30fc\u5c0f\u8aac\u306e\u3088\u3046\u306a\u30b9\u30c8\u30fc\u30ea\u30fc\u5c55\u958b\u3067\u3001<br \/>\n\u3068\u3066\u3082\u304a\u3082\u3057\u308d\u3044\u3067\u3059\u3002<br \/>\n\u3042\u306e\u624b\u585a\u6cbb\u866b\u3055\u3093\u304c\u76e3\u4fee\u3057\u305f\u672c\u3067\u3057\u305f\u3002<br \/>\n<a href=\"http:\/\/www.amazon.co.jp\/gp\/product\/4087730824\/ref=as_li_ss_il?ie=UTF8&#038;camp=247&#038;creative=7399&#038;creativeASIN=4087730824&#038;linkCode=as2&#038;tag=link2step2-22\"><img decoding=\"async\" border=\"0\" src=\"http:\/\/ws-fe.amazon-adsystem.com\/widgets\/q?_encoding=UTF8&#038;ASIN=4087730824&#038;Format=_SL250_&#038;ID=AsinImage&#038;MarketPlace=JP&#038;ServiceVersion=20070822&#038;WS=1&#038;tag=link2step2-22\" ><\/a><img loading=\"lazy\" decoding=\"async\" src=\"http:\/\/ir-jp.amazon-adsystem.com\/e\/ir?t=link2step2-22&#038;l=as2&#038;o=9&#038;a=4087730824\" width=\"1\" height=\"1\" border=\"0\" alt=\"\" style=\"border:none !important; margin:0px !important;\" \/><br \/>\n\u6050\u7adc\u306f\u30cd\u30e1\u30b7\u30b9\u3092\u898b\u305f\u304b<br \/>\n\u96c6\u82f1\u793e<br \/>\n\u30ea\u30c1\u30e3\u30fc\u30c9 \u30df\u30e5\u30e9\u30fc (\u8457)<br \/>\n\u624b\u585a \u6cbb\u866b (\u7ffb\u8a33)<br \/>\n\u3082\u3046\u3001\u3060\u3044\u3076\u53e4\u3044\u672c\u306a\u306e\u3067\u3001\u66f8\u5e97\u3067\u306f\u304a\u3044\u3066\u3044\u306a\u3044\u3067\u3057\u3087\u3046\u3002<br \/>\n\u3082\u3088\u308a\u306e\u56f3\u66f8\u9928\u3067\u635c\u3057\u3066\u3044\u3066\u304f\u3060\u3055\u3044\u3002<br \/>\nWeb\u306b\u306f\u3060\u3044\u3076\u524d\u306bWIRED\u306b\u3068\u308a\u3042\u3052\u3089\u308c\u3066\u3044\u307e\u3057\u305f\u3002<br \/>\n<a href=\"http:\/\/wired.jp\/2010\/07\/15\/\u300c\u5468\u671f\u7684\u306a\u5927\u91cf\u7d76\u6ec5\u306e\u539f\u56e0\u3001\u6b7b\u306e\u661f\u30cd\u30e1\u30b7\u30b9\u300d\u8aac\/\">\u300c\u5468\u671f\u7684\u306a\u5927\u91cf\u7d76\u6ec5\u306e\u539f\u56e0\u3001\u6b7b\u306e\u661f\u30cd\u30e1\u30b7\u30b9\u300d\u8aac\u3092\u691c\u8a3c\u300d<\/a><br \/>\n\u9280\u6cb3\u306e\u55b6\u307f\u304b\u3089\u6bd4\u3079\u308c\u3070\u3001\u4eba\u306e\u55b6\u307f\u306a\u3069\u3001\u3055\u3056\u6ce2\u306e\u3088\u3046\u306a\u3082\u306e\u3002\u3057\u304b\u3057\u3001\u3053\u306e\u4f53\u306e\u4e2d\u306e\u30ab\u30eb\u30b7\u30a6\u30e0\u3082\u6052\u661f\u306e\u6838\u878d\u5408\u3067\u3067\u304d\u305f\u3082\u306e\u306a\u3069\u3092\u601d\u3046\u3068\u3001\u9280\u6cb3\u306e\u55b6\u307f\u3082\u4eba\u306e\u55b6\u307f\u3082\u9023\u7d9a\u3057\u3066\u3044\u308b\u3068\u3082\u611f\u3058\u307e\u3059\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u5730\u8cea\u5b66\u8005\u3001\u53e4\u751f\u7269\u5b66\u8005\u304c\u305a\u30fc\u3063\u3068\u53e4\u3044\u5730\u7403\u306e\u5730\u5c64\u3092\u8abf\u3079\u3066\u3044\u304f\u3068\u3001\u5730\u5c64\u306e\u4e2d\u306b\u751f\u7269\u306e\u6b7b\u9ab8\u304c\u307b\u3068\u3093\u3069\u307f\u3089\u308c\u306a\u304f\u306a\u308b\u5927\u91cf\u7d76\u6ec5\u304c\u5468\u671f\u7684\u306b\u3042\u308b\u305d\u3046\u3067\u3059\u3002\u304a\u304a\u3088\u305d\uff12\uff16\u4e07\u5e74\u3054\u3068\u3002 Quoted from &#8220;Biodiversit [&hellip;]<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-542","post","type-post","status-publish","format-standard","hentry","category-uncategorized"],"jetpack_featured_media_url":"","_links":{"self":[{"href":"https:\/\/www.step3.net\/index.php?rest_route=\/wp\/v2\/posts\/542","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.step3.net\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.step3.net\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.step3.net\/index.php?rest_route=\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/www.step3.net\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=542"}],"version-history":[{"count":1,"href":"https:\/\/www.step3.net\/index.php?rest_route=\/wp\/v2\/posts\/542\/revisions"}],"predecessor-version":[{"id":2719,"href":"https:\/\/www.step3.net\/index.php?rest_route=\/wp\/v2\/posts\/542\/revisions\/2719"}],"wp:attachment":[{"href":"https:\/\/www.step3.net\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=542"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.step3.net\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=542"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.step3.net\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=542"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}