Spring is dawning in the northern hemisphere, where most of the planet’s green land is situated. Trees are unfurling leaves ...

One halcyon spring day in 1903, the 69-year-old anatomist and naturalist Dr. James Bell Pettigrew sat at the top of a sloping ...

Without being able to get into the heads of animals, it’s hard to say for sure. But instances of pig painters, whale crooners ...

Deep inside a labyrinthine cave in southwestern France, ancient humans who lived around 30,000 years ago carved horses, ...

But climate-friendly projects often cost tens or hundreds of thousands of dollars, leading fishermen to seek U.S. Department ...

Changing from gas to climate-friendly electric appliances often involves expensive retrofits. A growing list of companies ...

Trees depicted in famous artworks across a range of styles follow the same mathematical rules as their real-life counterparts ...