{"id":4888,"date":"2023-01-09T11:10:17","date_gmt":"2023-01-09T05:40:17","guid":{"rendered":"https:\/\/vajiramandravi.com\/current-affairs\/?p=4888"},"modified":"2025-03-27T03:02:26","modified_gmt":"2025-03-26T21:32:26","slug":"glass-frogs","status":"publish","type":"post","link":"https:\/\/vajiramandravi.com\/current-affairs\/glass-frogs\/","title":{"rendered":"Glass Frogs"},"content":{"rendered":"<h2><strong>About Glass Frogs:<\/strong><\/h2>\n<ul>\n<li>Glassfrogs live in the American tropics and are nocturnal amphibians that spend their days sleeping upside down on translucent leaves that match the colour of their backs \u2014 a common camouflage tactic.<\/li>\n<li>Their translucent skin and muscle allow their bones and organs to be visible \u2013 hence the name.<\/li>\n<li>Recent research has proposed that this adaptation masks the frogs\u2019 outlines on their leafy perches, making them harder for predators to spot.<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<h3><strong>How do some animals become transparent?<\/strong><\/h3>\n<ul>\n<li>Transparency is a common form of camouflage among animals that live in water, but rare on land.<\/li>\n<li>In vertebrates, <strong>attaining transparency is difficult because their circulatory system is full of red blood cells<\/strong> that interact with light. Studies have shown that <strong>ice fish and larval eels achieve transparency<\/strong> by not producing haemoglobin and red blood cells.<\/li>\n<li>Glassfrogs use an alternative strategy. Resting glassfrogs increase transparency two- to threefold by <strong>removing nearly 90 percent of their red blood cells from circulation and packing them within their liver<\/strong>, which contains reflective guanine crystals.<\/li>\n<li>Whenever the frogs need to become active again, they bring the red blood cells back into the blood, which gives the frogs the ability to move around &#8212; at which point, light absorption from these cells breaks transparency.<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<hr \/>\n<h3><strong>Q1) What is haemoglobin?<\/strong><\/h3>\n<p>Haemoglobin is an iron-containing protein in the blood of many animals\u2014in the red blood cells (erythrocytes) of vertebrates\u2014that transports oxygen to the tissues.<\/p>\n<p><strong>Source:\u00a0<\/strong><a href=\"https:\/\/www.thehindu.com\/sci-tech\/science\/science-for-all-how-do-some-animals-become-transparent\/article66337152.ece\" target=\"_blank\" rel=\"nofollow noopener\"><u>How do some animals become transparent?<\/u><\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Glassfrogs live in the American tropics and are nocturnal amphibians that spend their days sleeping upside down.<\/p>\n","protected":false},"author":5,"featured_media":4889,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[1],"tags":[],"class_list":{"0":"post-4888","1":"post","2":"type-post","3":"status-publish","4":"format-standard","5":"has-post-thumbnail","7":"category-upsc-prelims-current-affairs","8":"no-featured-image-padding"},"acf":[],"_links":{"self":[{"href":"https:\/\/vajiramandravi.com\/current-affairs\/wp-json\/wp\/v2\/posts\/4888","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/vajiramandravi.com\/current-affairs\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/vajiramandravi.com\/current-affairs\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/vajiramandravi.com\/current-affairs\/wp-json\/wp\/v2\/users\/5"}],"replies":[{"embeddable":true,"href":"https:\/\/vajiramandravi.com\/current-affairs\/wp-json\/wp\/v2\/comments?post=4888"}],"version-history":[{"count":0,"href":"https:\/\/vajiramandravi.com\/current-affairs\/wp-json\/wp\/v2\/posts\/4888\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/vajiramandravi.com\/current-affairs\/wp-json\/wp\/v2\/media\/4889"}],"wp:attachment":[{"href":"https:\/\/vajiramandravi.com\/current-affairs\/wp-json\/wp\/v2\/media?parent=4888"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/vajiramandravi.com\/current-affairs\/wp-json\/wp\/v2\/categories?post=4888"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/vajiramandravi.com\/current-affairs\/wp-json\/wp\/v2\/tags?post=4888"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}