Moss spores survived an extended stay on the outside of the ISS and remained capable of germinating once back on Earth. Their resilience to vacuum, extreme temperatures, and UV radiation surprised the ...

Here’s what you’ll learn when you read this story: At first glance, creating a definition for “life” seems somewhat straightforward. Sentient animals all the way down to single-celled organisms ...

The analysis of Meireles and colleagues shows that reproduction, as shown here in the endangered Grévy's zebra (Equus grevyi), is on the decrease across zoo mammal populations. FRANKFURT/ZURICH.