使用转基因玉米无意中危及黑脉金斑蝶。
The use of the modified maize inadvertently imperils monarch butterflies.
黑脉金斑蝶的毛虫只吃马利筋的叶子。
Caterpillars of monarch butterflies feed exclusively on milkweed leaves.
成熟的蝴蝶在成熟的黑脉金斑蝶体内保留糖苷，可以用来确定其产地。
Mature butterflies retain the glycosides in a mature monarch butterfly could be used to determine its place of origin.
黑脉金斑蝶要花三个月的时间从加拿大飞到墨西哥中部。
Monarch butterflies spend 3 months flying from Canada to Central Mexico.
世界上没有其它蝴蝶能像北美的橙黑相间的帝王蝶一样迁徙。
No other butterfly in the world migrates like the orange and black monarch of North America.
在洛马斯德萨阿帕里西奥君主的殖民地，有上百万的黑脉金斑蝶在那里过冬，虽然该地区属保护区，但还是未能免遭破坏。
The Lomas DE Aparicio monarch colony, where millions of monarch butterflies spend the winter, is being logged despite its protected status.
在洛马斯德萨阿帕里西奥君主的殖民地，有上百万的黑脉金斑蝶在那里过冬，而非法砍伐严重破坏了该地区的生态平衡。
Illegal logging is destroying the Lomas DE Aparicio monarch colony, where millions of monarch butterflies spend the winter.
黑脉金斑蝶的数量降至历史最低点。据NPR新闻的斯科特·纽曼报道，一些科学家认为转基因作物可能是其中一个影响因素。
The population of Monarch butterflies is falling to record lows. NPR's Scott Neuman reports some scientists suspect genetically modified crops could be a factor.
一亿只黑脉金斑蝶，就像长了翅膀的野花，有时要飞行4000英里，到达墨西哥州、德克萨斯州和加利福尼亚州。
A hundred million monarch butterflies, like wildflowers on wings, travel sometimes 4000 miles to Mexico, Texas and California.
基因作物可以抵抗除草剂，这样农民就可以用除草剂除掉马利筋，而马利筋是黑脉金斑蝶最主要的食物来源。
S. midwest. The gene crops are designed to resist herbicides and that's allowed farmers to wipe out milkweed, which is the main food source for Monarches.
黑脉金斑蝶长着绚丽的金桔色翅膀，黑色的纹路中间缀着小白点。
Monarch butterflies have rich orange-gold wings outlined in black and decorated with small dots of white.
马利筋为自我保护如此认真地抵抗黑脉金斑蝶的侵袭，结果变得与蝴蝶难舍难分。
In defending itself so thoroughly against the monarch, the milkweed became inseparable from the butterfly.
昨夜，我合上眼睛的时候，两只黑脉金斑蝶映入视线，在匆匆郁郁的草坪上翩翩起舞。终于，他们终于自由自在了；终于，他们终于过着自己的生活了！
Last night when I close my eyes I saw two Monarch Butterflies, dancing and playing over a lush green meadow finally free, finally happy to live their own life!
蛹期—黑燕尾蝶冬天时变身蝶蛹，气候回暖时破茧而出，变成蝴蝶。
Pupa - Black swallowtails spend winter as chrysalids, emerging as butterflies when warm weather returns.
蛹期—黑燕尾蝶冬天时变身蝶蛹，气候回暖时破茧而出，变成蝴蝶。
Pupa - Black swallowtails spend winter as chrysalids, emerging as butterflies when warm weather returns.
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