Google will soon use machine learning to estimate the age of its users. In an update on Wednesday, Google said it’s testing a ...

Global warming is producing a rapid loss of plant species -- according to estimates, roughly 600 plant species have died out since 1750 -- twice the number of animal species lost. But which species ...

You may be aware that Chinook salmon return from the ocean to their spawning grounds in Idaho, but what you might not know is ...

Trees are natural timekeepers, silently recording the passage of years in their rings, growth patterns, and changing foliage. Their annual rings, visible in cross-sections of trunks, tell stories of ...