The latest IUCN Red List update warns of extinction for the world’s tallest animal, a speeding train in India kills three elephants, how chimps recognise butts like we recognise faces, and a tiny rhino rescued after a week-long search. <a href="https://www.theguardian.com/environment/2016/dec/08/giraffe-red-list-vulnerable-species-extinction" target="_blank">GIRAFFES AT RISK OF EXTINCTION </a><a href="http://phys.org/news/2016-12-med-shark-ray-species-extinction.html" target="_blank">MEDITERRANEAN SHARKS &amp; RAYS IN TROUBLE </a><a href="http://www.hindustantimes.com/india-news/train-hit-kills-3-elephants-including-2-pregnant-females-in-assam/story-jHH8C3SsaIi6OlIdEcpPvK.html" target="_blank">SPEEDING TRAIN TRAGEDY </a><a href="http://news.nationalgeographic.com/2016/12/baby-rhino-shot-by-poachers-rescued-south-africa-video.html" target="_blank">BABY RHINO RESCUE </a><a href="http://www.livescience.com/57081-sea-blob-identified-after-century.html" target="_blank">MYSTERIOUS SEA BLOB </a><a href="http://www.wired.co.uk/article/chimpanzee-face-buttocks" target="_blank">CHIMPS RECOGNISE BUTTS LIKE FACES </a><a href="http://www.popsci.com/why-this-bird-is-wearing-tiny-protective-goggles?src=SOC&amp;dom=fb" target="_blank">TINY SAFETY GOGGLES FOR SCIENCE </a><a href="/natural-world/animal-behaviour/watch-disgruntled-tiger-charges-an-elephant-in-indias-famous-wildlife-park" target="_blank">TIGER CHARGES ELEPHANT</a>

Humans behaving badly

Nature news that made headlines, plus a good helping of the cute and the quirky, all wrapped up in a weekly two-minute video roundup.