Genetics

Men become fathers at an older age than women become mothers, but both genders have begun to have children later.

Most of us, when we encounter a fruit fly, are focused on keeping it out of our food. But what if it was your job to feed fruit flies?

Most of us, when we encounter a fruit fly, are focused on keeping it out of our food. But what if it was your job to feed fruit flies?

Pretty much everyone knows that oxygen is a fundamental requirement for life as we know it, but oddly enough that’s not entirely right. There are many simple life forms, such as some kinds of bacteria and archea, that don’t have a major metabolic pathway that needs oxygen.

Sensitivity to loud noises, like thunder or fireworks, is the most common kind of anxiety for dogs. In fact, researchers at the University of Helsinki had dog owners around the world report on their canines' anxiety.

Some of us have Neanderthal genes, and there's nothing wrong with that. There's research showing that women with a certain gene variant, or allele, inherited from Neanderthals are more fertile than women without it, and that 15 to 20 percent of women in Europe have it.

Most of us, when we encounter a fruit fly, are focused on keeping it out of our food. But what if it was your job to feed fruit flies?

Tardigrades are little animals that can survive dehydration, radiation, and survive in outer space without a space suit. As strange as all of the above sounds, they are apparently even stranger.

In a bee hive, most bees work hard collecting pollen from flowers, except the queen, who doesn't even have to leave her hive.

Dogs and their closest wild relatives, wolves, both came to North America from Eurasia. The earliest dogs in the Americas were introduced at least ten thousand years ago.