Panamanian golden frogs—such as F1, seen here—are native to the rainforests and cloud forests of Panama but haven't been seen in the wild since 2009. Each creature's bright coloration warns predators ...

Streams that once sang with the croaks, chirps and ribbits of dozens of frog species have gone silent. They're victims of a fungus that's decimating amphibian populations worldwide. Such catastrophic ...

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Abstract: Intelligent reflecting surface (IRS) is an enabling technology to engineer the radio signal propagation in wireless networks. By smartly tuning the signal reflection via a large number of ...