The Asian citrus psyllid is a tiny bug that spreads a devastating tree disease. Pesticides can't always control it, so California farmers have turned to a different solution: another bug.
A pair of bombs killed at least 10 people in Kenya's capital on Friday. What do these and a slew of other attacks in Kenya say about the security situation in the country and the region?
Thousands of others have been displaced, more than 1,000 were flown to safety on helicopters. The floods are the worst on record.
Paleontologists say the titanosaur fossils are from the biggest dinosaur ever to walk the planet.