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Well , if you ever been to Guam , you 

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will see and hear There's no birds 

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Around nine out of the 13 species of 

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birds were wiped out by this brown tree 

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snake . The snake is a 30 inch snake 

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that has evolved , can get as big as 10 

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ft . Anything that leaves the island , 

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though we search it with the dogs spots 

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trained to look for the brown tree 

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snake . 

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My 

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name is Anthony Thompson . I work with 

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Department of Agriculture , USDA K nine 

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handler . This is spot and we do 

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inspections for all outbound cargo . 

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That leaves Guam . Make sure no 

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invasive species , notably the brown 

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tree snake leave the island . We search 

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vehicles , aircraft , cargo , household 

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goods for the military , 100% check . 

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Basically , we choose . We try to use 

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Terriers , Jack Russell terriers or as 

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close as we can to a Jack Russell 

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terriers because they're very visual 

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dogs and they like to look for small 

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things that run around the ground . So 

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we concentrate to make their switch 

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from my searching to visual with their 

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nose , and they don't burn out as fast 

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in this humid weather . 

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It takes about three months for the 

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dogs to learn the job itself , to 

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recognize what they're looking for 

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because , like spot , he doesn't even 

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know what a snake is . But he knows the 

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scent . So we have to learn to trust 

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each other a free . But 

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so he could be responding to other 

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things . And I have to learn how to 

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read what he's responding to . What 

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makes him respond to snake opposed to 

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rodent or food ? The different drives . 

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So after you feel that report with the 

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dog , it makes it easier to read the 

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dog when you're really on a snake sense . 

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So you know when you're really working . 

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Good boy , when you first get the dog 

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to get that trust , you have to spend 

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all that time with him learning , 

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making trust you too , because he's not 

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gonna work for you if he doesn't trust 

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you either . So , yeah ,