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Most Interesting Science News Articles of the Week

by Live Science Staff   |   March 22, 2015 08:47am ET

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Lidar (the laser equivalent of radar) revealed the oldest known Roman military camp called San Rocco (C). Also shown are the Roman military camps Grociana piccola (A) and Montedoro (B). Scale bars: 100 m. Credit: Image courtesy of Civil Protection of Friuli Venezia Giulia.  View full size image

Each week we uncover the most interesting and informative articles around. From an evolutionary tongue-substitute to finding geneaological homes for Darwin's strangest animals; from diet soda's link to belly fat to the happiest country in the world, here are 10 of the coolest stories in Science this week.
Cool water tongue discovery:
While how animals first evolved to move on land is important, one scientist believes how they learned to eat is just as important. Animals living in water do not have tongues, and one biomechanist believes the first tetrapods on land may have used water as a makeshift tongue...

[Full Story: Weird 'Water Tongue' Lets Fish Feed on Land]
Greedo catfish:

The 1998 discovery of a big-eyed catfish with a sucker mouth was recently named for the Star Wars character Greedo. This naming adds to a growing list of creatures named after characters and celebrities.
[Full Story: Bug-Eyed Catfish Named for Greedo in 'Star Wars']
Darwin animal gang gets family:
Two bizarre creatures Darwin labeled the strangest he'd ever discovered have finally been placed in a geneaological family tree. While making educated guesses can only get a scientist so far, looking at the molecular level can be much more accurate in this process.
[Full Story: Darwin's 'Strangest Animals' Finally Placed on Family Tree]
Yeti hairs?
A researcher from the Smithsonian's National Museum of Natural History in Washington, D.C. helped to disprove a 2014 study claiming to solve the mystery of the yeti. By comparing samples used in the debunked study, the researcher believes the hairs may come from a previously unknown species of bear that may have inspired the legend of the yeti.
[Full Story: Yeti Debate Swirls: Study Reveals Origin of Mysterious Hairs]
Bug-eating explorers:

The 111th Explorers Club Annual Dinner at the American Museum of Natural History will have a first this year: the menu is made up of only bugs. From tarantulas to cockroaches, the organization will be dining not on something new but will be joining what 2 million people in the world already consume regularly.
[Full Story: No More Lions and Mammoths: Real Explorers Eat Bugs]
Diet soda and belly fat:
A new study links regular consumption of diet soda to a three-fold increase in belly fat over 10 years. The study adds to the growing evidence that diet soda has harmful effects on human health.
[Full Story: Diet Soda Linked to Increased Belly Fat in Older Adults]
Blood moon over Richard III:

Beginning March 22, 2015, a week of ceremonies begins leading up to the reinterment of King Richard III. Some researchers believe at the original, not so ceremonious burial, a blood moon may have resided over the event.
[Full Story: 'Blood Moon' May Have Shone on Richard III's Dead Body]
Oldest Roman fort found:
By utilizing technology — laser scanners called Lidar — researchers have revealed what they believe to be the oldest known Roman fort. The citadel may be the precursor to Trieste and where the Roman army fought off ancient pirates.
[Full Story: Oldest Roman Fort Protected Soldiers from 'Infamous Pirates']
Teaching old eggs new tricks:
A fertility company is making, as of now, unfounded claims of being able to rejuvinate a woman's aging eggs. The practice is quite new and, while based on a logical assumption of replacing aged mitochondria, the actual practice may be tricky and incomplete.
[Full Story: Can You Really Freshen Up Women's 'Aging' Eggs?]
The happiest country is … 
Out of 143 countries polled, the top 10 are all in Latin America with Paraguay taking the top place. The interviews of 1,000 people over the age of 15 in each country focused on emotions like joy, happiness and feeling respected.
[Full Story: The 10 Happiest Countries Are All in Latin America]