A new species of tyrannosaur, Lythronax Argestes, has been unearthed in Grand Staircase-Escalante National Monument in southern Utah. Lythronax translates as "king of gore," and the second part of the name, argestes, refers to its geographic location in the American Southwest.

The huge carnivore inhabited Laramidia, a landmass formed on the western coast of a shallow sea that flooded the central region of North America, isolating western and eastern portions of the continent for millions of years during the Late Cretaceous Period, between 95-70 million years ago.

The argument for using different bats in high school and the major leagues is primarily cost: wooden bats break when a fastball is hit too low on the bat. 

But aside from skewing results for players - balls that would go nowhere due to a broken bat can be a hit using metal or composite bats - there is also a safety issue. For young players on defense, the ball can move much faster, because non-wood bats transfer energy to the ball better, a phenomenon called the "trampoline effect."

That makes the ball more dangerous. Such concerns have led to uniform bat regulations in college and high school baseball, but amid uncertainty about how non-wood bats perform in the hands of younger players, the rules are less consistent for that age group.

We can't identify 99 percent of the species that have gone extinct so trying to keep everything we do know about from going extinct is tilting at nature's windmill.

But if we played Noah and had a giant ark and wanted to engage in ecological Jenga (build a tower, then remove blocks without causing the tower to collapse), which species should we save first to prevent a collapse in ecological function?

Can you prevent the flu? Sure you can. Don't come into contact with someone who has the flu, or get a vaccine.

Can diet do it? A group of researchers say bacteria found in a traditional Japanese pickle can - and they have primed mainstream science media for coverage by declaring it the next superfood.

Their study found immune-boosting powers of Lactobacillus brevis from Suguki, a pickled turnip popular in Japan, in mice that were exposed to a flu virus.

Remarkable improvements in the quality of life, prevention and treatment of disease have been made possible through advancements in biomedical research, including clinical trials involving human subjects.

Which do male lizards find sexiest, the more feminine kind or the masculine?

Researchers recently tackled this question by examining the mating behavior and blue-color patterns of fence lizards in Arkansas, Alabama, and Mississippi and offer some insight into the evolution of male-female differences.