Earth Matters

April the giraffe gives birth to a healthy male calf

This invasive 20-pound rodent could devastate California's agriculture industry

Kenya's 'Elephant Queen' immortalized in remarkable photographs

Animals don't recognize international borders, so why should parks?

Meet 'Steve,' the rare celestial phenomenon lighting up the skies over Canada

California desert comes alive with wildflower 'superbloom'

Opportunity's last photo is a bittersweet travel log of Mars

Robots hunt starfish, lionfish to save coral reefs

5 slimy facts that will change how you look at banana slugs forever

A huge lake just appeared in Death Valley

Italy's newfound coral reef is a special breed

March can be beautiful, but why is the weather so weird?