<p>Royal baby names, inhaled blow darts and the North Pole lake are just a few stories we brought to you in Science this week.</p>
Spanish fort discovered
<p>Before there was Jamestown and even before there was Roanoke, there was Spain's Fort San Juan, in the Appalachian foothills of North Carolina.</p>
<p> Archaeologists have uncovered the remains of the fort built by gold-hunting Spanish conquistadors in the 16th century and say it's the oldest European garrison ever found in the interior of the United States. </p>
<p>[Full Story: <a href="http://www.livescience.com/38417-early-spanish-fort-found-in-north-carolina.html" target="_blank">
Spanish Fort Built by Gold Hunters Discovered</a>]</p>
Royal baby name boring
<p> The London bookmakers were spot on: The royal baby will be called George Alexander Louis.</p>
<p> Kate Middleton and Prince William's child will be given the formal title of His Royal Highness Prince George of Cambridge.
<p>[Full Story: <a href="http://www.livescience.com/38412-royal-baby-named-george.html" target="_blank">Royal Baby Name Is Classic and Boring</a>]</p>
How worms regenerate a head
<p> The mystery of why some animals can regenerate body parts while others cannot has long puzzled scientists, but three new studies have brought the issue to a head.</p>
<p> Three different research groups studied why some species of flatworms can regenerate entire heads and tails after being cut into pieces, while other species of worm only partially regenerate their body parts. By activating a single gene in the cascade of signals involved in regeneration, the researchers restored the worms' ability to grow new heads.
<p>[Full Story: <a href="http://www.livescience.com/38405-how-flatworms-regrow-their-heads.html" target="_blank">Getting a Head: How Worms Regenerate Lost Tissue</a>]</p>
Shark ray dies from mating injuries
<p> Love hurts. For proof, look no further than the animal kingdom.</p>
<p> Yesterday (July 23), the Newport Aquarium in Kentucky announced the death of its latest acquisition, a female shark ray. The exotic-looking fish — also known as a bowmouth guitarfish (<i>Rhina ancylostoma</i>) — was killed during the act of mating by an amorous male.
<p>[Full Story: <a href="http://www.livescience.com/38417-early-spanish-fort-found-in-north-carolina.html" target="_blank">The Pain of Love: Shark Ray Dies from Mating Injuries</a>]</p>
Curiosity takes longest drive yet
<p> NASA's Mars rover Curiosity is really starting to stretch its legs on the Red Planet.</p>
<p> The 1-ton Curiosity rover made by far the longest drive of its nearly year-long surface mission on Sunday (July 21), traversing 329 feet (100.3 meters) of Martian terrain. The robot's one-day distance record prior to Sunday had been 161 feet (49 m), NASA officials said.
<p>[Full Story: <a href="http://www.livescience.com/38398-mars-rover-curiosity-longest-drive.html" target="_blank">Mars Rover Curiosity Takes Longest Red Planet Drive Yet</a>]</p>
Viking jewelry unearthed
<p> Several pieces of Viking jewelry, some of which contain gold, have been uncovered at a farm site in Denmark that dates as far back as 1,300 years.</p>
<p> Although the Vikings have a popular reputation as being raiders, they were also farmers, traders and explorers, and the craftsmanship seen in this jewelry demonstrates their artistic skills.
<p>[Full Story: <a href="http://www.livescience.com/38396-viking-jewelry-unearthed-in-denmark.html" target="_blank">Viking Jewelry Unearthed in Denmark</a>]</p>
Genital claws lure in female fish
<p> When male guppies fail to win over females with their good looks and dance moves, they turn to another, more aggressive set of tools: claws on the tips of their genitalia.</p>
<p> Biologists have long speculated that guppies — freshwater fish native to the Caribbean — use tiny claws on the tips of their genitalia to secure mates. But, until now, nobody has tested this theory experimentally. A group of biologists from the University of Toronto conducted an experiment to test the role of the claws in mating, and found that the grippers helped males seal the deal with females that were otherwise unwilling to mate, the researchers report today (July 23) in the journal Biology Letters.
<p>[Full Story: <a href="http://www.livescience.com/38392-male-guppies-genital-claws.html" target="_blank">Hooked! Male Fish Lure Females With Genital Claws</a>]</p>
Huge dino tail discovered
<p> A giant dinosaur tail has been uncovered in northern Mexico, paleontologists announced this week.</p>
<p> The well-preserved tail measures about 16 feet (5 meters) long, contains 50 vertebrae, and seems to have belonged to a hadrosaur — a duck-billed dino that lived about 72 million years ago. Hadrosaurs grew to be about 40 feet (12 m) long, so the tail would have taken up just under half the length of its body.
<p>[Full Story: <a href="http://www.livescience.com/38370-dinosaur-tail-mexico.html" target="_blank">Huge Dinosaur Tail Discovered in Mexico</a>]</p>
North Pole now a lake
<p> Instead of snow and ice whirling on the wind, a foot-deep aquamarine lake now sloshes around a webcam stationed at the North Pole. The meltwater lake started forming July 13, following two weeks of warm weather in the high Arctic. In early July, temperatures were 2 to 5 degrees Fahrenheit (1 to 3 degrees Celsius) higher than average over much of the Arctic Ocean, according to the National Snow & Ice Data Center.
<p>[Full Story: <a href="http://www.livescience.com/38347-north-pole-ice-melt-lake.html" target="_blank">North Pole Now a Lake</a>]</p>
Schrodinger's Cat comes alive
<p> The strangeness of the world of the very small that allows a particle to be in two states at once may extend to larger scales, two new studies reveal. If the research proves true, that would bolster the validity of a thought experiment suggesting a cat can be both alive and dead at the same time.</p>
<p> The idea, called Schrödinger's Cat after the physicist, Erwin Schrödinger, who proposed it in 1935, goes like this: Put a cat in a box with a vial of poison gas. The vial opens when a tiny piece of radioactive metal emits an alpha particle (the nucleus of a helium atom) as it decays. Emitting an alpha particle is a quantum-mechanical process, which means that whether it happens in any given stretch of time is basically random.
<p>[Full Story: <a href="http://www.livescience.com/38339-experiments-bolster-schrodingers-cat-idea.html" target="_blank">Bizarre 'Schrodinger's Cat' Comes Alive in New Experiments</a>]</p>
Boy inhales blowgun dart
<p> A 15-year-old boy in Ohio required a visit to the emergency room after he inhaled a dart from a homemade blowgun, according to a new report of his case.</p>
The dart lodged in the boy's airway after he inhaled deeply while holding the blowgun in his mouth. Blowguns are designed to allow darts to be propelled outward by the force of an exhaled breath. The gun mostly consists of a narrow tube.</p>
<p>[Full Story: <a href="http://www.livescience.com/38331-blowgun-dart-inhalation-risk.html" target="_blank">Boy Inhales Blowgun Dart</a>]</p>