One of our first spring arrivals will be the colorful hooded orioles. The crisp fluorescent yellow and jet black of the males ...

There are several female tanagers and orioles ... Call a soft chuck. Scott's Oriole is a bird of desert mountains and yucca in the southwest deserts. The male is black above, including head ...

The Golden Oriole is a striking bird with vibrant plumage ... and greyish-white underparts streaked with dark lines. The female is also without the black mask worn proudly by the male. Both sexes have ...

In an evolutionary battle of the sexes, scientists have found that male flies sharpen their eyesight to avoid being tricked ...

With bloated bellies and hairy legs, female flies try to look bigger to get food from courting mates. But male flies, in turn ...

The Alabama legislation, which passed the Senate on Thursday, would create legal definitions of male and female based on the reproductive organs at birth. At least nine other states have enacted ...

Still, more say all-female groups have a positive impact on women’s well-being (67%) than say the same about the impact of male-only groups on men (56%). In thinking about the impact these types of ...

While most animals reproduce sexually, some species rely solely on females for parthenogenetic reproduction. Even in these ...