Add Yahoo as a preferred source to see more of our stories on Google. Volunteers remove piles of washed-up seaweed of the invasive Rugulopteryx okamurae algae, originating from east Asia, from ...

At a beach near Algiers, brown algae native to the Pacific Ocean cover the golden sand, posing a threat to ecosystems native to the area and their stench repelling swimmers at the peak of summer.

Volunteers remove piles of washed-up seaweed of the invasive Rugulopteryx okamurae algae, originating from east Asia, from Al-Marsa beach in Algiers on July 30, 2025. Volunteers remove piles of washed ...

At a beach near Algiers, brown algae native to the Pacific Ocean cover the golden sand, posing a threat to ecosystems native to the area and their stench repelling swimmers at the peak of summer. The ...