A surge of cases of the intestinal illness that causes diarrhea and nausea has been detected in 31 states, according to federal health authorities, but the source is still under investigation.

Farmers in Senegal are welcoming fish into their rice paddies. The hope is they'll fertilize the crop, be a source of food ... and eat the snails that carry parasitic worms.

Taught to sound like a candidate, bots are engaging voters with personalized text messages, making AI-generated texting conversations the latest tool political campaigns are using to connect.