Daily Junction.mobi portal<p>This article is republished from <a href="https://theconversation.com">The Conversation</a> under a Creative Commons license. Read the <a href="https://theconversation.com/wildlife-populations-have-declined-73-since-1970-but-many-of-the-worlds-animals-still-arent-being-counted-293867">original article</a>.</p> </div>