Ellesmere Island in Canada was once home to warm, temperate swamps — and a small primate or close relative that lived millions of years ago. Josh Forwood/Alamy Stock Photo By Freda Kreier January 25, 2023 at 2:00 pm The Arctic today is a hostile place for most...

The African penguin ( Spheniscus demersus ) is one of many diving birds threatened with extinction. Vicki Jauron, Babylon and Beyond Photography/Getty Images Plus By Jake Buehler January 26, 2023 at 8:00 am Birds that dive underwater — such as penguins, loons and...

Curbing climate change means getting more electricity from renewable sources, such as wind power. Erik Isakson/ Tetra images/Getty Images By Alexandra Witze January 27, 2023 at 7:00 am Patricia Hidalgo-Gonzalez saw the future of energy on a broiling-hot day last...

Analyses of patterns in ancient cave markings suggest that the four dots on this animal’s torso indicate that aurochs (similar to modern cattle) mated in the fourth month after the spring snowmelt. JoJan/Wikimedia Commons ( CC BY 4.0 ) By Anna Gibbs January 27, 2023...

Prairie voles ( Microtus ochrogaster ) form male-female pair-bonds and stick with their partner for life. The molecule oxytocin has long been thought to be important in this process. Nastacia Goodwin By Darren Incorvaia January 27, 2023 at 11:00 am Prairie voles have...