Sharks have been evolving for more than 450 million years, developing skeletons not from bone, but from a tough, mineralized ...

New research shows that dentine, the inner layer of teeth that transmits sensory information to nerves inside the pulp, first evolved as sensory tissue in the armored exoskeletons of ancient fish.

Sharks, skates and catfish also have tooth-like structures called denticles that make their skin feel like sandpaper. When Haridy studied the tissues of her catfish, she saw that the denticles were ...

In biology classes from high school through university, I learned that mitochondria are little objects that reside within ...

To better understand the circadian clock in modern-day cyanobacteria, a Japanese research team has studied ancient ...

SINGAPORE – In September 2010, American pop star Lady Gaga attended the MTV Video Music Awards in Los Angeles in a dress and booties made of raw cuts of meat. It was an outfit that made global ...

Mosura’s fossils from the Burgess Shale reveal its inner structure The fossils that made the identification of Mosura fentoni arose were found in the Burgess Shale, a world-renowned fossil bed ...

Teeth are sensitive because they evolved from sensory tissue in both ancient vertebrates and ancient arthropods.

And one of the first spots that guys identify as a need-to-address area is the inner chest. One catch for physique-minded guys as they set out on their inner chest training journey: You can't ...

But Altjira doesn’t behave that way. Instead, it follows a more complex, non-Keplerian path that hints at the inner structure of the system. Using this method, researchers detected a ...

[to] one man, one place, one date." Laying the Groundwork: Levene Investigates the Structure of DNA Meanwhile, even as Miescher's name fell into obscurity by the twentieth century, other ...