That is, the initial hybrids may produce viable offspring by mating back to one of the parent species but not the other. The resulting mixtures of genes may introduce new combinations that are ...

Our understanding of which aquatic species produce sounds just took a big step forward. Scientists have created an inventory of species confirmed or expected to produce sound underwater.

Runny nose, itching eyes, worsening asthma symptoms—the effects of hay fever are nothing to sneeze at, experts say, warning ...

The most common definition of a species is that a species is a group of organisms that can successfully breed to produce fertile offspring. This is known as the biological species concept. This ...

Some corals produce chemicals called diterpenoids that have shown promise in fighting cancer and reducing inflammation, but ...

Two distantly-related species that split 60 million years ago have produced an offspring on the forest floor of the French Pyrenees. We’re talking about ferns, but still, reuniting after such a ...

A new species of dinosaur has been identified more than a decade after a large number of ancient skeletons were found in Spain -- and researchers expect more species to be discovered. The ...

While mammals are known for feeding milk to their young, some bird species produce a similar substance called crop milk. Pigeons, doves, and flamingos secrete this nutrient-rich fluid from their ...

Researchers are learning more about how the fungus coexists with the morning glory, and their findings are a real trip.