Ranchers in central Mexico are discovering screwworm fly maggots burrowed in their cattle for the first time in a generation, sounding the alarm for Texas cattle ranchers who worry the parasitic flies ...

(The Conversation is an independent and nonprofit source of news, analysis and commentary from academic experts.) ...

【参照サイト】 Instead of a Wall, a Binational Park To Be Built on Border of Texas & Mexico 【参照サイト】 #NoBorderWall Coalition 【参照サイト】 6 ways the border wall could disrupt the environment 【関連記事】 国境による分断をなくす。