We tested 10 of the highest-rated hybrid mattresses on the market to find the best for every type of sleeper. These three emerged as the most comfortable.

In Texas, biologists have documented an extraordinary bird — the natural hybrid offspring of a green jay and a blue jay. Once separated by millions of years of evolution and distinct ranges, the two ...

Hybrid fruit trees are often hardier. They can also produce delicious fruit in more abundance than their parents. That's a boon for birds visiting your yard.