After Years of Searching, Scientists Finally Found This Coconut-Cracking Giant Rat

© Velizar Simeonovski, The Field Museum
© Velizar Simeonovski, The Field Museum

Tyrone Lavery has spent years on the lookout for a giant rat. Lavery, a mammalogist who works at Chicago's Field Museum, first heard of a tree-dwelling rat that locals on Vangunu Island called “vika” on his first trip to the islands as a postdoctoral researcher in 2010. Now, he's finally found it.

Tyrone reports the existence of a new (to science) species they've named Uromys vika in a study just published in the Journal of Mammalogy. It's the first new rodent found in the Solomon Islands in 80 years—"and it's not like people haven't been trying," as Lavery says in a press statement from The Field Museum. "It was just so hard to find."

The Solomon Islands, located just east of Papua New Guinea, are biologically isolated by the Pacific Ocean, and half the mammals native to the islands are found nowhere else. The unique nature of their ecosystem makes the Solomon Islands—much like the Galapagos—fertile ground for scientists.

Though researchers working in the Solomon Islands have suspected the existence of the vika for two decades, the rat found by Lavery and his colleagues John Vendi and Hikuna Judge is the first specimen recorded by scientists. They spotted it scurrying out of a felled tree, and judging by the shape of its skull, could tell that it wasn't like other species of rats native to the area. Before its discovery, Lavery had spent so long looking for the elusive rat that he was beginning to think that maybe the children's rhymes and folk songs referencing vika were just referring to regular black rats.

But his first instinct was correct. U. vika is more than four times the size of a regular rat, measuring about 18 inches long. It lives in trees, and its teeth are strong enough to crack into coconuts, chewing circular holes in the shells to reach the meat inside.

Lavery confirmed that the massive rat he found was a unique, new species by checking its DNA against the DNA of other regional rat species, and by confirming with Vangunu Island locals that the rat he captured was indeed the one they called vika. "Vika's ancestors probably rafted to the island on vegetation, and once they got there, they evolved into this wonderfully new species, nothing like what they came from on the mainland," the mammalogist explained.

The species will be designated as critically endangered, because commercial logging poses a huge threat to its rainforest habitat. It was hard enough to find just one of the rats, and there's no telling when (or if) scientists will see the vika again.

The Mental Floss Store Is Back!

Mental Floss Store
Mental Floss Store

You've been asking about it for months, and today we can finally confirm that the Mental Floss Store is back up and running! Simply head here to find dozens of T-shirts with all sorts of unique designs to choose from, whether you’re in the market for a pi pun, a risqué grammar joke, or something only your fellow bookworms will appreciate. You can even use your new Mental Floss shirt to teach your friends all about scurvy.

Mental Floss Store

If you’re just in the mood to express your love of all things Mental Floss, you can also get our darling little logo on phone cases, tote bags, mugs, baby bibs, and more.

Mental Floss Store

Head on over to the Mental Floss Store to see our entire collection. And if you use the code FLOSSERS at checkout by end of day Sunday, you'll get 20 percent off your order. 

Sign Up Today: Get exclusive deals, product news, reviews, and more with the Mental Floss Smart Shopping newsletter!

Treat Your Feline This Holiday Season With Fancy Feast’s Cat Food Advent Calendar

Fancy Feast/Chewy
Fancy Feast/Chewy

In anticipation of the holiday season, many children and adults get to unwrap mini presents each of the 24 days leading up to Christmas day, during what's known as Advent. Though Advent itself dates back to the 4th century, the version we know today, complete with the chocolate-filled calendars, was popularized in the early 1900s. And apparently it's no longer just for humans, because Fancy Feast is letting your feline roommate in on the fun with this unique cat food Advent calendar, now available at Chewy for $23.

For the 24 days leading up to Christmas, your cat will get to enjoy a variety of different wet foods, including favorites like grilled salmon, chicken, and more. There is even a unique ornament included with each calendar featuring a cat in the shape of a heart that can go right onto your tree. (Also, don't be surprised to find your actual cat making its way into the middle of your tree; they're known climbers.)

Now while you enjoy your Advent calendars from brands like LEGO, Funko, and more, your cat will be able to join in on the fun as well. To learn more about Fancy Feast's Feastivites Advent Calendar, head on over to Chewy.

Sign Up Today: Get exclusive deals, product news, reviews, and more with the Mental Floss Smart Shopping newsletter!

This article contains affiliate links to products selected by our editors. Mental Floss may receive a commission for purchases made through these links.