【英语时差8,16】想赚钱？来投资乳草

（单词翻译）

 That'true. monarch¹ butterflies lay their eggs on milkweed plants.The caterpillars² feed on milkweed, from which they extract substances called cardenolides, a type of chemical that can cause heart arrhythmia. This toxin³ doesn’t affect the caterpillars themselves, but it makes them poisonous or distasteful to most predators⁴.But it’s not just monarchs⁵ that like milkweed, scientists are discovering new uses for many parts of this perennial⁶ plant that grows along roadsides and fields. The large seed pods contain thousands of seeds, each with a feather white tuft of silky fibers⁸. These fibers help the seeds disperse⁹ in the wind.It turns out that these milkweed fibers are excellent insulation¹⁰, superior even to down feathers. One company has started marketing¹¹ milkweed fiber⁷ as hypoallergenic filler for comforters and pillows.Chemists at the National Center for Agricultural Utilization¹² Research have also discovered that the seed pulp¹³ left after the fibers are removed can be used to kill destructive soil nematodes and other agricultural pests.Yet another study found that milkweed oil is high in vitamin E, and is free from the toxins¹⁴ found in other parts of the plant. The oil from milkweed can make an ideal ingredient for moisturizers, cosmetics¹⁵ or even biodiesel fuel.