"Two white Anglo-Saxon Protestant males, which doesn't put much of a fresh face on the Republican Party.
Oxitec's lab workers manually remove modified females, aiming to release only males, which don't bite for blood like females do.
These Arctic-breeding ducks get their name from the males, which have two exceptionally elongated central tail feathers.
Female crickets generally move to locate chirping males, which often stay in one spot their entire lives.
Except for old males, which are solitary, wild boars live in groups.
Queen bees perform mating flights soon after emerging to collect and store sperm from multiple males, which is then used for reproduction over the queen's lifetime.
The males, which do not drink blood, "are just leftovers on the plate, waiting to get incinerated in the biohazard waste," said Richard Stafford, chief of quality control.
While the soldiers are genetically identical to the sisters, they share only some of their genes with the males, which come from a separate egg.
Saturns were preferable because it was easy to tell the pale females, which she needed, from the darker males, which she did not.
Fertilized eggs develop into females, which can become queens or workers, and unfertilized eggs develop into males, which can do nothing but inseminate females.
The picture is further darkened by a "trophy-hunting" trend towards killing the largest bears – older males which command the highest prices.
