In an age of unprecedented disruption and opportunity, success depends on what you do with your data and how fast you do it.

This is the era of AI. This is the era of KX.

KX, survival of the fastest.

Welcome to Tech News Briefing. It's Tuesday, April 1st. I'm Julie Chang for the Wall Street Journal.

Dairy farmers are putting a little extra flair on their cows to help track their movements,

and possibly detect bird flu and other illnesses.

Plus, copycat hotel sites that charge hefty fees have been popping up online.

Our travel columnist will tell you how to avoid dubious

resellers. Up first, dairy farmers are putting smart devices like internet-connected callers,

ear and leg tags on their livestock to better track the health of their cows.

The devices could help detect diseases like bird flu, which has spread to cattle after wiping out

millions of America's chickens over the past few years.

Farmers say they hope the devices will help manage individual animals with less manual labor.

WSJ Enterprise Tech reporter Bell Lynn has been following

the story and she spoke with our colleague Victoria Craig. Here's their conversation.

A wearable device that helps farmers spot possible bird flu, just explain how this device works.

The device is typically a caller or an ear tag can also be a tag that goes

on the legs or the tail of the cow. And it's sort of akin to a wearable that you and I would wear,

maybe like a Fitbit or an Apple Watch, but for cows and for cattle, they are less designed to help you track

your steps and figure out if your heart rate is where it's supposed to be on a workout, but more

for farmers to figure out if their animals are in optimal health when they're ready for breeding

and if anything unusual is going on. It's been trained on a vast amount of

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