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Toxic frogs with weak defenses persist in the gene pool alongside stronger competitors. Diversity is a hallmark of life and it shows up in unexpected places.

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Phys.org provides the latest news on astronomy, space, earth science and space exploration.

Archaeology & Fossils. A new sphenodontian from Brazil is the oldest record of the group in Gondwana. Archaeology & Fossils. Neolithic remains help sniff out the earliest human use of dung.

The U.S. recently celebrated the Fourth of July with dazzling fireworks displays in many cities. After the "oohs" and "ahhs" faded, some people might have wondered how the lingering gunpowder ...

Researchers at Tel Aviv University have developed a novel nano-vaccine for melanoma, the most aggressive type of skin cancer. Their innovative approach has so far proven effective in preventing ...

A team of Japanese scientists has found a species of bacteria that eats the type of plastic found in most disposable water bottles. The discovery, published Thursday in the journal Science, could ...