"Oh to be a frog and sit there." Gardener shows off backyard oasis with surreal water feature: 'This is so zen and calming to ...

Scientists hope hungry black weevils imported from Louisiana can help tackle South Africa's invasive water plant problem.

Every time the temperature drops, a cloud passes overhead, or the sun sets, a plant makes a choice: Keep its microscopic ...

The plant is steadily taking over freshwater bodies in the northern region of South Africa, suffocating aquatic life, including on the Crocodile River and the Hartbeespoort Dam it flows into.