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© Zachary James Johnston, The Field Museum
© Zachary James Johnston, The Field Museum

SUE the T. Rex Is Getting a Makeover

© Zachary James Johnston, The Field Museum
© Zachary James Johnston, The Field Museum

Our lives are constantly changing—even those of us who are already dead. The beloved fossilized T. rex skeleton known as SUE will soon be treated to a makeover and new digs at The Field Museum in Chicago.

SUE’s move is motivated by more than just luxury; the museum needs to clear out its great hall to make room for the largest dinosaur ever discovered. A private donor has bestowed the museum with a full-size cast of the Argentinean titanosaur Patagotitan mayorum.

Illustration of a titanosaur cast in a great hall.
The Field Museum

The touchable 122-foot-long marvel will stretch across Stanley Field Hall and upward into the second story. SUE will be disassembled in 2018 and eventually relocated to a fancy new suite in another hall along with other fossil specimens.

Illustration comparing the size of a titanosaur, a human, and a T. rex.
The Field Museum

“At 40.5 feet long, she’s the world’s biggest T. rex, but in that giant hall, people sometimes remark that she’s smaller than they expected,” senior exhibitions project manager Hilary Hansen said in a statement.

“By putting her in her own gallery in our Evolving Planet exhibition, she’ll be put into the proper context of her fellow dinosaurs, and she’ll dominate the room.”

(SUE’s sex is unknown, but many museum staffers take a cue from the fossil’s ladylike name and use female pronouns.)

With the new setup comes a whole new look. The SUE we see today is incomplete; when the skeleton was assembled in 2000, dinosaur curators omitted one group of bones, unsure where to put them. They’ve since figured it out. The bones are gastralia, which cage the stomach area like a lower set of ribs.

Dinosaur gastralia arrayed  in a bed of sand.
© Zachary James Johnston, The Field Museum

T. rex had a bulging belly,” associate curator of dinosaurs Pete Makovicky said in the statement. “It wasn’t sleek and gazelle-like the way you might think.”

Over the last two decades since SUE’s assembly we’ve learned a lot about the way SUE and family looked and moved. Makovicky and his colleagues also plan to tinker with SUE’s posture so that upon the grand re-debut in 2019, “she’ll be walking rather than skulking.”

Or strutting, more accurately. The gloating dinosaur’s Twitter bio now reads “Private Suite Haver.”

Never one to be left out of the conversation, SUE issued a public comment, writing, “For years now, I've been pitching this to the Museum. A room with a better defensible position against velociraptor attacks and reduced exposure to possible meteorite collisions. Finally, the mammals in charge have come to their senses."

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Big Questions
What Causes Sinkholes?
Mark Ralston/AFP/Getty Images
Mark Ralston/AFP/Getty Images

This week, a sinkhole opened up on the White House lawn—likely the result of excess rainfall on the "legitimate swamp" surrounding the storied building, a geologist told The New York Times. While the event had some suggesting we call for Buffy's help, sinkholes are pretty common. In the past few days alone, cavernous maws in the earth have appeared in Maryland, North Carolina, Tennessee, and of course Florida, home to more sinkholes than any other state.

Sinkholes have gulped down suburban homes, cars, and entire fields in the past. How does the ground just open up like that?

Sinkholes are a simple matter of cause and effect. Urban sinkholes may be directly traced to underground water main breaks or collapsed sewer pipelines, into which city sidewalks crumple in the absence of any structural support. In more rural areas, such catastrophes might be attributed to abandoned mine shafts or salt caverns that can't take the weight anymore. These types of sinkholes are heavily influenced by human action, but most sinkholes are unpredictable, inevitable natural occurrences.

Florida is so prone to sinkholes because it has the misfortune of being built upon a foundation of limestone—solid rock, but the kind that is easily dissolved by acidic rain or groundwater. The karst process, in which the mildly acidic water wears away at fractures in the limestone, leaves empty space where there used to be stone, and even the residue is washed away. Any loose soil, grass, or—for example—luxury condominiums perched atop the hole in the ground aren't left with much support. Just as a house built on a weak foundation is more likely to collapse, the same is true of the ground itself. Gravity eventually takes its toll, aided by natural erosion, and so the hole begins to sink.

About 10 percent of the world's landscape is composed of karst regions. Despite being common, sinkholes' unforeseeable nature serves as proof that the ground beneath our feet may not be as solid as we think.

A version of this story originally ran in 2014.

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science
DNA Analysis of Loch Ness Could Reveal the Lake's Hidden Creatures
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iStock

Stakeouts, sonar studies, and a 24-hour video feed have all been set up in an effort to confirm the existence of the legendary Loch Ness Monster. Now, the Associated Press reports that an international team of scientists will use DNA analysis to learn what's really hiding in the depths of Scotland's most mysterious landmark.

The team, led by Neil Gemmell, who researches evolutionary genetics at the University of Otago in New Zealand, will collect 300 water samples from various locations and depths around the lake. The waters are filled with microscopic DNA fragments animals leave behind as they swim, mate, eat, poop, and die in the waters, and if Nessie is a resident, she's sure to leave bits of herself floating around as well.

After extracting the DNA from the organic material found in the water samples, the scientists plan to sequence it. The results will then be compared to the DNA profiles of known species. If there's evidence of an animal that's not normally found in the lake, or an entirely new species, the researchers will hopefully spot it.

Gemmell is a Nessie skeptic, and he says the point of the project isn't necessarily to discover new species. Rather, he wants to create a genetic profile of the lake while generating some buzz around the science behind it.

If the study goes according to plan, the database of Loch Ness's inhabitants should be complete by 2019. And though the results likely won't include a long-extinct plesiosaur, they may offer insights about other invasive species that now call the lake home.

[h/t AP]

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