Tech

AI discovers that every lion has a unique and trackable roar

Published

6 months ago

October 14, 2020

theworldtrend

Scientists from Oxford University have used a machine learning algorithm to discover every lion has its own identifiable and trackable roar.

Previous research has shown that lions roar to communicate with other members of their pride and scare off foes. But we still know little about how they recognize which animal has made the call.

The Oxford scientists tried to find out by designing a device called a “biologger” that’s attached to a lion’s existing GPS collar to record audio and movement data. They then associated each call with a lion by cross-referencing the data through their recordings of roars.

[Read: This AI system thinks we’re getting better at wildlife conservation]

Next, the team used the data collected by the biologgers to train a pattern recognition algorithm to recognize each lion’s roar. Finally, they tested the algorithm on recordings it had not been fed before.

They found that each lion’s roar produces a distinctive frequency shape. The algorithm used these to match a roar to an individual lion with 91.5% accuracy.

The system was developed by researchers from Oxford University’s Department of Computer Science and WildCru, the conservation unit that had been tracking Cecil the Lion until he was killed by a trophy hunter in 2015. His death sparked an outcry that forced the hunter into hiding.

Identifying the roars of other lions could help protect the roughly 20,000 of them that are still left in the wild.

“African lion numbers are declining and developing cost-effective tools for monitoring, and ultimately better protecting, populations is a conservation priority,” said WildCRU’s Andrew J. Loveridge. “The ability to remotely evaluate the number of individual lions in a population from their roars could revolutionize the way in which lion populations are assessed.”

You can read the full research paper in the journal Bioacoustics.

Published October 14, 2020 — 18:10 UTC

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Tech

Charge Your Phone Wirelessly With 50% off a Multifunctional LED Lamp

Published

2 months ago

February 10, 2021

theworldtrend

Best Tech Deals

Best Tech DealsThe best tech deals from around the web, updated daily.

When you’re ready to turn in for the night, you don’t want to forget to charge your phone— especially if your mobile device doubles as your alarm clock.

With this wireless charger lamp, you can make this crucial step of your nightly routine even easier by just setting your phone on the wireless charging pad and… well, that’s all there is to it!

Other functions include multiple lighting modes as well as a sleep timer option for auto shut-off of the light after 30 or 60 minutes.

This lamp can be yours in white for $18 if you clip the coupon on Amazon (it’s below the original $40 price) and add promo code ABC88699 at checkout.

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You can snag the black version for $20 using the same code—no coupon though, sorry.

Don’t sleep on this deal! Who knows how long stock or the coupon code will last?

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Keep That Hotdish Hot With 65% Off a Luncia Casserole Carrier, Only $11 With Promo Code

Published

4 months ago

December 22, 2020

theworldtrend

Best Home Deals

Best Home DealsThe best home, kitchen, smart home, and automotive deals from around the web, updated daily.

Luncia Double-Decker Dish Carrier | $11 | Amazon | Promo code SDDU9S7F

It has been a long time since the days we could safely have a potluck or other gatherings, but we have a fantastic deal perfect for once those times return. These double-decker Luncia dish carriers can be had for 65% off when you add promo code SDDU9S7F at checkout and clip the coupon on the site (it’s just below the price). These holders fit 9″x 13″ sized baking dishes.

That means you can insulate and keep two dishes of food warm for only $11 instead of $30. What’s more, your Luncia carrier will arrive by Christmas if you order today as a Prime member.

Just add promo code SDDU9S7F and clip the 5% off coupon to bring the price down to $11 for the blue or the grey option.

Grab this offer while it’s still around!

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Conquer Your Pup’s Dander and Fur With $700 Off a Cobalt or Charcoal Bobsweep PetHair Plus Robot Vacuum

Published

5 months ago

November 1, 2020

theworldtrend

Best Home Deals

Best Home DealsThe best home, kitchen, smart home, and automotive deals from around the web, updated daily.

Bobsweep PetHair Plus Robot Vacuum & Mop (Cobalt) | $200 | Best Buy

Bobsweep PetHair Plus Robot Vacuum & Mop (Charcoal) | $200 | Best Buy

Allergies can be bad enough as the seasons change. Don’t let pet hair and dander add to that by vacuuming it up early and often. That chore is easier said than done— unless you have a robot vacuum to do the work for you. This lovely bright cobalt Bobsweep PetHair Plus robot vacuum and mop, only $200 today at Best Buy seems like an ideal option. That’s a whopping $700 off, by the way.

You can get the same deal for the charcoal version of the robot vac, too. This model is not only specially made for picking up pet hair, it self docks and charges when it’s finished with the work.

It also comes with a mop attachment, so it can take care of those kitchen floors for you as well. Grab it while it’s still available for this fantastic price!