Beautiful colors on tropical birds, while undoubtedly adaptive for the animals, also attract people who want to capture them for the international pet trade, writes Anna Marie Yanny (@annamarie_yanny) for Mongabay. This puts them at greater risk of extinction, scientists argue in a new study. How can we encourage people to appreciate these birds while reducing their interest in owning them? they ask. Image by Lars Falkdalen Lindahl via Wikimedia Commons