Menopausal Mother Nature

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13 unexpected leap year facts

About every four years, February gains an extra day. We do this so our calendars don’t get out of whack, but Feb. 29 has also prompted some interesting traditions. Here are some surprising facts about the bonus day that comes…

The power of unusual animal friendships

We know that sometimes animals have unlikely friendships. Whether it’s circumstances that throw them together or they just happen to find a friend from another species, animals will occasionally become pals, creating an unconventional alliance. These unusual relationships cause a…

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DNA data offers scientific look at 500 years of extramarital sex in Western Europe

Researchers have put DNA evidence together with long-term genealogical data to explore questions of biological fatherhood on a broad scale among people living in parts of Western Europe over the last 500 years. The study found evidence of extra-pair paternity events turned up more often in people of lower socioeconomic status who lived in densely populated cities in the 19th century.

Study examines theory on menopause age and symptom severity

(Wiley) A recent theory states that women enter menopause at different ages and have varying extents of symptoms due in part to residence patterns after marriage — or whether couples disperse to live with paternal or maternal kin. Investigators found little support for this theory in a study of four ethnic groups in China, however. The findings are published in Ecology and Evolution.

Dog ownership associated with longer life, especially among heart attack and stroke survivors

Dog ownership was associated with a 33% lower risk of early death for heart attack survivors living alone and 27% reduced risk of early death for stroke survivors living alone, compared to people who did not own a dog. Dog ownership was associated with a 24% reduced risk of all-cause mortality and a 31% lower risk of death by heart attack or stroke compared to non-owners.

How to stay politically engaged without losing your mind

It’s not just in your head — these tough political times are making all of us a little sick. From losing sleep to feeling depressed to arguing with family and friends, today’s democracy in action isn’t exactly inspiring any of…

New species of crocodile discovered in museum collections

(Field Museum) By looking at 90-year-old crocodile skulls in museum collections and double-checking with live specimens at a zoological park in Florida, researchers have just discovered a new species of ten-foot-long croc. The new species, Crocodylus halli, is from the southern part of New Guinea, and until now, scientists had thought it was the same species that lived on the northern part of the island.

This is how happy couples argue

In his seminal novel, “Anna Karenina,” Tolstoy remarked that “Happy families are all alike; every unhappy family is unhappy in its own way.” His observation, that it takes the avoidance of flaws to have a successful family (or an experiment),…