A Mexican Free Tailed Bat holding on to the bark of a tree

Singing’s Not Just for the Birds Anymore

The common perception of bat calls consists of squeaks and chirps. But many bats, including Mexican free-tailed bats of Austin, TX, sing to one another.
Color coded map expressing ozone concentration over different parts of the globe. Ozone concentration trends upwards from lower hemisphere to upper.

Signs of Recovery in Earth’s Ozone Layer, but Danger Remains

For the first time in 35 years, atmospheric ozone actually increased, according to NASA measurements.
Microscope view of anthrax

Anthrax: The Bacteria that Lays Diabolical Traps

Anthrax sets self-perpetuating booby traps in order to spread itself, researchers have found.
Close-up of a dolphin's face rising out of the water

How Smart are Dolphins, Really?

Dolphins may not be as smart as previously believed.
Illustration a satellite orbiting Saturn

The Cassini Saturn Mission and the Allure of the Unknown

What the Cassini Saturn Mission teaches us about scientific discovery
Clams in shallow water

For the Next Generation in Solar Power, Talk to the Clam

The next generation of solar power might be waiting beneath the Pacific waves, in the form of an armchair-sized clam.
A Polio Quarantine Card outlining the Act of Assembly Act from 1909

The Origin of Quarantine

Such forms of enforced isolation are referenced as far back as the Old Testament, while the word "quarantine" itself dates to the late medieval Plague.
Four turtles in a plastic big with a net over them

Man with Turtles in his Pants is the Tip of the Iceberg

Xu Gai was caught trying to enter Canada with 51 turtles crammed into his pants.
A close-up of a finger prick diabetes test

Stem Cells Offer Hope for Treating Type I Diabetes

Douglas Melton’s stem cell lab at Harvard published a landmark study in Cell documenting a huge step towards treating Type I Diabetes