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

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.

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Courtesy of The National Aviary
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Animals
Watch This Live Stream to See Two Rare Penguin Chicks Hatch From Their Eggs
Courtesy of The National Aviary
Courtesy of The National Aviary

Bringing an African penguin chick into the world is an involved process, with both penguin parents taking turns incubating the egg. Now, over a month since they were laid, two penguin eggs at the National Aviary in Pittsburgh, Pennsylvania are ready to hatch. As Gizmodo reports, the baby birds will make their grand debut live for the world to see on the zoo's website.

The live stream follows couple Sidney and Bette in their nest, waiting for their young to emerge. The first egg was laid November 7 and is expected to hatch between December 14 and 18. The second, laid November 11, should hatch between December 18 and 22.

"We are thrilled to give the public this inside view of the arrival of these rare chicks," National Aviary executive director Cheryl Tracy said in a statement. "This is an important opportunity to raise awareness of a critically endangered species that is in rapid decline in the wild, and to learn about the work that the National Aviary is doing to care for and propagate African penguins."

African penguins are endangered, with less than 25,000 pairs left in the wild today. The National Aviary, the only independent indoor nonprofit aviary in the U.S., works to conserve threatened populations and raise awareness of them with bird breeding programs and educational campaigns.

After Sidney and Bette's new chicks are born, they will care for them in the nest for their first three weeks of life. The two penguins are parenting pros at this point: The monogamous couple has already hatched and raised three sets of chicks together.

[h/t Gizmodo]

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holidays
Bleat Along to Classic Holiday Tunes With This Goat Christmas Album
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iStock

Feeling a little Grinchy this month? The Sweden branch of ActionAid, an international charity dedicated to fighting global poverty, wants to goat—errr ... goad—you into the Christmas spirit with their animal-focused holiday album: All I Want for Christmas is a Goat.

Fittingly, it features the shriek-filled vocal stylings of a group of festive farm animals bleating out classics like “Jingle Bells,” “Rudolph the Red-Nosed Reindeer,” and “O Come All Ye Faithful.” The recording may sound like a silly novelty release, but there's a serious cause behind it: It’s intended to remind listeners how the animals benefit impoverished communities. Goats can live in arid nations that are too dry for farming, and they provide their owners with milk and wool. In fact, the only thing they can't seem to do is, well, sing. 

You can purchase All I Want for Christmas is a Goat on iTunes and Spotify, or listen to a few songs from its eight-track selection below.

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