Global warming did once kill off a once-common species, but it was the transition from the last Ice Age to the current warming period, starting 15,000 years ago.

That well-known species was the woolly mammoth but it managed to hang on until 2,000 B.C. Its last known habitat was Wrangel Island in the Arctic Ocean. Ice ages happen in cycles, in recent geological history about 90,000 of every 100,000 years the planet has seen the planet covered in far more ice, and during the last one, mammoths were widespread, from Spain to Alaska.

People eat more with friends and family than when dining alone and evolutionary psychologists have defied Occam's razor and come up with an unne

If you want to find the gay neighborhood in a new town, look for the tanning salons, according to a new analysis. Neighborhoods with high proportions of gay and bisexual men are twice as likely to have an indoor tanning salon than other neighborhoods.

Some will try to argue that the tanning industry is targeting gay and bisexual men ("just like Big Tobacco" is the cliché) but they are already six times more likely than heterosexual men to tan indoors so the stores are going up where the customers are. Due to high usage, gay and bisexual men are about twice as likely to suffer from skin cancer as heterosexual men but all people should stop using tanning beds.

A decade ago there was concern about a mass die-off of bees, and while they rebounded nicely, it shone a light on a problem that has occurred since recordkeeping of bees first began over a thousand years ago. Mass die-offs are common.

While it was once believed to be just random bad luck, and modern environmentalists tried to claim it was pesticides in their war against agricultural scientists, the recent problems have instead been varroa mites. 

These parasites are just a couple of millimeters in size but they infiltrate colonies and infect bees with viruses and do it will. Yet until their plague on bees got attention in corporate media, so-called Colony Collapse Disorder, there had been little study of the mite's biology.

The imagery of the ideal housewife was just what it reads like, a convention fabricated by male-dominated urban advertising executives to sell stuff.

Because it was an ideal, some women adopted it, and some men wanted it, and therefore it grew, but it largely faded away as culture wised up to claims about organic food and alternative medicine in the early 2000s.

Though prebiotics are a fad outside the chemotherapy sector, there is little evidence they do anything positive or negative in humans. Except in horses, where they seem to do something negative.

Before they can reach the intestines, commercially available supplements partially break down in the animals' stomachs, which can lead to inflammation of the stomach lining. So if you really feel the need to give a horse prebiotics, preparing  food supplements so that they don't take effect until they reach the large intestine.