When Sonar Doesn’t Cut It, These Bats Crawl to Hunt Prey

Even if humans can’t hear it, bats make a lot of noise. Their high-pitched sonar screeches are what allow them to locate prey like bugs in the middle of the night. Echolocation is one of the species's coolest superpowers, but it's not the only trick bats have in their arsenal. According to this episode of the PBS series Deep Look, this bat prefers to whisper, crawl, and listen carefully to hunt its prey.

The pallid bat is native to North America, where some moths have developed defense mechanisms like vibrating tails that scramble sonar signals. Many moths don’t need fancy adaptations to avoid the predators: They can hear their loud calls from far away and escape before becoming dinner.

Faced with these issues, the pallid bat evolved a few unusual alternatives to sonar. Instead of screaming, it “whispers” its signals softly to navigate the night skies without scaring off prey. The bat also uses its super-sized ears to detect movement in the dirt and crawls on all fours to stalk critters like scorpions. So if you see a bat on the ground, don’t be alarmed: It’s likely just getting creative to find its next meal.

[h/t Deep Look]

Amazon’s Big Fall Sale Features Deals on Electronics, Kitchen Appliances, and Home Décor

Dash/Keurig
Dash/Keurig

If you're looking for deals on items like Keurigs, BISSELL vacuums, and essential oil diffusers, it's usually pretty slim pickings until the holiday sales roll around. Thankfully, Amazon is starting these deals a little earlier with their Big Fall Sale, where customers can get up to 20 percent off everything from home decor to WFH essentials and kitchen gadgets. Now you won’t have to wait until Black Friday for the deal you need. Make sure to see all the deals that the sale has to offer here and check out our favorites below.

Electronics

Dash/Amazon

- BISSELL Lightweight Upright Vacuum Cleaner $170 (save $60)

- Dash Deluxe Air Fryer $80 (save $20)

- Dash Rapid 6-Egg Cooker $17 (save $3)

- Keurig K-Café Single Coffee Maker $169 (save $30)

- COMFEE Toaster Oven $29 (save $9)

- AmazonBasics 1500W Oscillating Ceramic Heater $31 (save $4)

Home office Essentials

HP/Amazon

- HP Neverstop Laser Printer $250 (save $30)

- HP ScanJet Pro 2500 f1 Flatbed OCR Scanner $274 (save $25)

- HP Printer Paper (500 Sheets) $5 (save $2)

- Mead Composition Books Pack of 5 Ruled Notebooks $11 (save $2)

- Swingline Desktop Hole Punch $7 (save $17)

- Officemate OIC Achieva Side Load Letter Tray $15 (save $7)

- PILOT G2 Premium Rolling Ball Gel Pens 12-Pack $10 (save $3)

Toys and games

Selieve/Amazon

- Selieve Toys Old Children's Walkie Talkies $17 (save $7)

- Yard Games Giant Tumbling Timbers $59 (save $21)

- Duckura Jump Rocket Launchers $11 (save $17)

- EXERCISE N PLAY Automatic Launcher Baseball Bat $14 (save $29)

- Holy Stone HS165 GPS Drones with 2K HD Camera $95 (save $40)

Home Improvement

DEWALT/Amazon

- DEWALT 20V MAX LED Hand Held Work Light $54 (save $65)

- Duck EZ Packing Tape with Dispenser, 6 Rolls $11 (save $6)

- Bissell MultiClean Wet/Dry Garage Auto Vacuum $111 (save $39)

- Full Circle Sinksational Sink Strainer with Stopper $5 (save $2)

Home Décor

NECA/Amazon

- A Christmas Story 20-Inch Leg Lamp Prop Replica by NECA $41 save $5

- SYLVANIA 100 LED Warm White Mini Lights $8 (save 2)

- Yankee Candle Large Jar Candle Vanilla Cupcake $17 (save $12)

- Malden 8-Opening Matted Collage Picture Frame $20 (save $8)

- Lush Decor Blue and Gray Flower Curtains Pair $57 (save $55)

- LEVOIT Essential Oil Diffuser $25 (save $5)

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Why Do Dogs Like to Bury Things?

Dogs like to dig.
Dogs like to dig.
Nickos/iStock via Getty Images

If you’ve ever found your dog’s favorite toy nestled between pillows or under a pile of loose dirt in the backyard, then you’ve probably come to understand that dogs like to bury things. Like many of their behaviors, digging is an instinct. But where does that impulse come from?

Cesar's Way explains that before dogs were domesticated and enjoyed bags of processed dog food set out in a bowl by their helpful human friends, they were responsible for feeding themselves. If they caught a meal, it was important to keep other dogs from running off with it. To help protect their food supply, it was necessary to bury it. Obscuring it under dirt helped keep other dogs off the scent.

This behavior persists even when a dog knows some kibble is on the menu. It may also manifest itself when a dog has more on its plate than it can enjoy at any one time. The ground is a good place to keep something for later.

But food isn’t the only reason a dog will start digging. If they’ve nabbed something of yours, like a television remote, they may be expressing a desire to play.

Some dog breeds are more prone to digging than others. Terriers, dachshunds, beagles, basset hounds, and miniature schnauzers go burrowing more often than others, though pretty much any dog will exhibit the behavior at times. While there’s nothing inherently harmful about it, you should always be sure a dog in your backyard isn’t being exposed to any lawn care products or other chemicals that could prove harmful. You should also probably keep your remote in a safe place, before the dog decides to relocate it for you.

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