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(单词翻译:双击或拖选)
LULU GARCIA-NAVARRO, HOST:
In central Montana, drones are dropping peanut butter pellets on prairie dog colonies. As Yellowstone Public Radio's Nate Hegyi explains, it's part of an effort by biologists to save North America's most endangered mammal.
(SOUNDBITE OF PRAIRIE DOGS HOWLING)
NATE HEGYI, BYLINE1: Under a half-crescent moon, U.S. Fish and Wildlife Services biologist Randy Matchett sweeps a spotlight2 back and forth3 over a cold, black prairie. Suddenly, a pair of brilliant, green eyes pops out of the darkness.
RANDY MATCHETT: No.
HEGYI: Look at those eyes.
MATCHETT: Don't those eyes look amazing?
HEGYI: They belong to a black-footed ferret, the most endangered mammal in North America.
KRISTY BLY: They're these ferocious4, masked bandits of the prairie. They're like these little slinkies.
HEGYI: That's Kristy Bly, a senior biologist with the World Wildlife Fund. She says there's only about 300 black-footed ferrets left in the wild. And they depend almost entirely5 on prairie dogs to survive.
BLY: Prairie dogs are Chicken McNuggets of the prairie, where so many species eat them.
HEGYI: But in recent years, prairie-dog towns across the American West have been exposed to a deadly disease called sylvatic plague. While it's treatable in humans, sylvatic plague can wipe out entire prairie-dog towns in less than a month. And that means no more food for endangered black-footed ferrets. So Kristy Bly, Randy Matchett and a team of scientists and engineers have spent this year vaccinating6 prairie-dog towns in central Montana against the plague using drones.
BLY: Run, run, run, Forrest, run.
HEGYI: The sun is up now. And a drone named Shep is zooming7 over a prairie-dog town. Every 30 feet or so, it shoots out these little blueberry-sized pellets. They taste like peanut butter. Prairie dogs love peanut butter. But they're laced with a live vaccine8 that protects these little guys from the plague.
BLY: We have to keep enough alive in enough places to keep ferrets alive.
HEGYI: Bly says if they can stop the plague from killing9 prairie dogs, the endangered ferrets population could grow. And using drones like Shep helps that happen faster. In the past, scientists delivered the vaccine baits by hand. Drones cover a lot more ground. But this is only the second year anyone's used one to save ferrets. So there's still a couple of kinks, like when Shep suddenly veers10 off its pre-mapped path and begins to head home.
KURT KREIGER: It's - I think it's jammed.
HEGYI: Kurt Kreiger, the drone's pilot and engineer, coaxes11 Shep to the ground. The team huddles12 around it, pulling pieces apart and inspecting the pellet shooter.
KREIGER: I'm frazzled a little bit. But, you know, you have clearer minds going, hey, why don't you just check this? Oh, yeah...
HEGYI: And once they fix the drone, the team refills it with peanut butter pellets...
(SOUNDBITE OF POURING PELLETS)
HEGYI: ...Turns it on.
(SOUNDBITE OF BEEPING)
HEGYI: ...And then the drone takes off.
(SOUNDBITE OF DRONE FYLING)
KREIGER: There it is. Shep's on his way. Do we have pellets dropping? Something just - yep. There they go. Something just shot off the side. Boom. Boom. Look at them go.
HEGYI: By the end of the day, they hope to expose more than 4,000 prairie dogs to the vaccine. In the past, field trials showed prairie dogs living in vaccinated13 areas survived waves of the plague. And when the prairie dog can beat the plague, Bly says it's good for everything, including the ferret.
BLY: Without it, do you really have a complete ecosystem14? You start taking those pieces apart. And it's like a domino effect. When we have ferrets on the landscape, the piece of the puzzle that is the American prairie all fits together.
HEGYI: For NPR News, I'm Nate Hegyi in Montana.
(SOUNDBITE OF LYMBYC SYSTYM'S "SCIENTIFIC ROMANCE")
1 byline | |
n.署名;v.署名 | |
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2 spotlight | |
n.公众注意的中心,聚光灯,探照灯,视听,注意,醒目 | |
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3 forth | |
adv.向前;向外,往外 | |
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4 ferocious | |
adj.凶猛的,残暴的,极度的,十分强烈的 | |
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5 entirely | |
ad.全部地,完整地;完全地,彻底地 | |
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6 vaccinating | |
给…接种疫苗( vaccinate的现在分词 ); 注射疫苗,接种疫苗 | |
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7 zooming | |
adj.快速上升的v.(飞机、汽车等)急速移动( zoom的过去分词 );(价格、费用等)急升,猛涨 | |
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8 vaccine | |
n.牛痘苗,疫苗;adj.牛痘的,疫苗的 | |
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9 killing | |
n.巨额利润;突然赚大钱,发大财 | |
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10 veers | |
v.(尤指交通工具)改变方向或路线( veer的第三人称单数 );(指谈话内容、人的行为或观点)突然改变;(指风) (在北半球按顺时针方向、在南半球按逆时针方向)逐渐转向;风向顺时针转 | |
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11 coaxes | |
v.哄,用好话劝说( coax的第三人称单数 );巧言骗取;哄劝,劝诱 | |
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12 huddles | |
(尤指杂乱地)挤在一起的人(或物品、建筑)( huddle的名词复数 ); (美式足球)队员靠拢(磋商战术) | |
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13 vaccinated | |
[医]已接种的,种痘的,接种过疫菌的 | |
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14 ecosystem | |
n.生态系统 | |
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