I laugh and all but I have to correct some things:
Male mantis can indeed copulate without a head, I saw a documentary and the scene was funny, cool and creepy at the same time, but it has been reported that mantis can mate avoiding the death of the male, in captivity all males die so it was thought that the same happened naturally, but some biologists have seen males who manage to scape. It appears though that its better if the female eats the male, since she will have enough food resources to produce healthy offspring.
About left handers theres this wikipedia paragraph:
"Statistics show that older people are less likely to be left-handed than their younger counterparts — the percentages of left-handed people sharply drop off with increased age. In America, 12% of 20 year olds are left-handed, while only 5% of 50 year olds and less than 1% of people over 80 are. These numbers are surprisingly divergent — how can they be explained?
A study (no longer deemed credible) published in 1991 claimed that these statistics indicate that left-handed peoples' lifespans are shorter than those of their right-handed counterparts by as much as 9 years. They explained this gap by asserting that left-handed people are more likely to die in accidents as a result of their "affliction," which renders them clumsier and ill-equipped to survive in a right-handed world.
Researchers now attribute most of the difference between the age groups to the fact that older people would be more likely to have experienced pressure to switch hands, a factor not affecting the younger generations. This is supported by the fact that more women than men switched hands, and women live longer than men. However, this reasoning cannot explain all variation, and "the case of the disappearing southpaws" remains a mystery.
Another theory is that some lefties switch hands later in life, due to conformist pressures, or a "biological imperative." It has also been suggested that the percentage of children born left-handed may have been increasing over time."
I personally think its the repression factor of the past, when children were forced to go right-handed, we'll have to wait another century though to corroborate that.
And I swear I read the strongest muscle was the one in the jaw, not the tongue, but I can't find any sources on that.
(yeah Im ruining the fun but at least Im not like Icecold!
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Topic: Did You Know...!? (Read 15514 times)
