Orchards in the US and elsewhere have been trying to head off a disease called citrus greening. Research shows that dogs can sniff out this disease better and more quickly than any other method we have. Plus: if you're out riding a horse in Australia, and you get a call, put the phone in hands-free mode. 
Dog sleuths sniff out crop disease hitting citrus trees (KCRA)
Man riding horse stopped by police for using phone (Weekly Times Now)
Outside of a dog Cool Weird Awesome's Patreon backers are a person's best friend. Inside of a dog it's too dark to back anything. 

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