This ancient biomaterial making a 21st-century comeback could change millions of lives

Across the tropics, people worked out long ago how to transform fig tree bark into comfortable cloth—the practice could even predate weaving. In Uganda, such barkcloth has served as a symbol of protest, a form of money, and the exclusive raiment of kings and queens. It has been suppressed by religion, colonialism, and war, yet the tradition has persisted. And now barkcloth has found a new life as a source of local pride, as well as in international markets for home furnishings, high fashion, and even aerospace materials. It is creating jobs, and is entirely sustainable. Continue reading

How poop could counter calls to resume commercial whaling

This post was first published by Scientific American in August. As such, it refers in the future tense to a meeting that took place back in September. You will find an update — and some good news — at the end of the story.

Before whales dive into the darkness of the deep ocean they often come to the surface and release a huge plume of faecal matter—which can be the colour of over-steeped green tea or a bright orange sunset. When Joe Roman, a conservation biologist at the University of Vermont, saw one of these spectacular dumps in the mid-1990s, he got to wondering: “Is it ecologically important? Or is it a fart in a hurricane?” Continue reading

Cocaine of the sea, ‘epic failure’ and how following the money can limit illegal wildlife trade

Vaquita6_Olson_NOAA

Two vaquitas. Only ten more remain.

It has been called the ‘cocaine of the sea’ — the dried swim bladder of the totoaba fish, when smuggled from Mexico to China, sells for US$40-60,000 per kilo thanks to its supposed medicinal qualities. While the fish is critically endangered as a result, the situation of another animal that gets caught in totoaba nets is even more dire. The illicit trade has driven the world’s smallest marine mammal — a kind of porpoise called a vaquita — to almost certain extinction. At the last count, only 12 remained alive. Continue reading