Showing posts with label anatomy. Show all posts
Showing posts with label anatomy. Show all posts

Saturday, November 28, 2009

Saturday, April 28, 2007

When they say they have large shoes to fill

Indian men generally too small for condoms.

“As per international standards, most condoms are 150 mm to 180 mm in length and 44 to 56 mm in width. But data collected in Mumbai till 2001 showed that 60% of the participants measured 126 to 156 mm in length and 30% between 100 and 125 mm,’’ said a city researcher, pointing out that there was a difference of at least 5 cm in length.


No wonder they feel so threatened by Richard Gere.

Tuesday, March 20, 2007

Do you fear what I fear?

The brain gets scared by seeing other brains get scared. A pretty useful evolutionary adaptation, this one is pretty easy to see, a 'no-brainer', if I might use the term in an absurd manner.

“You learn by observing other people’s emotional expressions, and what we are showing is that that can be as effective as having those direct experiences yourself,” Olsson said. “That’s probably one of the reasons why a lot people are having phobias of certain kinds of stimuli, such as snakes and spiders.”


This study, like many before it, points towards a part of the brain called the amygdala, two little lumps of flesh that are the major players that manage your tears, angers and fears. Squirt, squirt.

Monday, March 19, 2007

Viva la Inner Ear Evolution

Fossil gives insight to evolution of ear.

I love the name of the creature, by the way. Yanoconodon - that just rolls off the tongue. I have a love of words that cram tons of syllables into a word by alternating vowels and consonants....like consonants or manufacturer. I'll have to figure out how to work 'Yanoconodon' into as many conversations as possible.

Oh right, the science. This adds another great piece to vertebrate evolution, showing how a very intricate and complex structure could arise from precursor forms to give mammals their exceptional terrestrial hearing. Expect creationist retaliation within the week.

Tuesday, March 13, 2007

Arachnidus Interruptus

I'm all about ensuring your mate isn't cheating on you, but some species to ridiculous ends.


When a male wasp spider discovers a potential partner, he turns her on by shaking her web. The female thereupon supports herself on her long legs on the web so that the male, who is much smaller, can then creep under her body. The rest works hydraulically: the tip of a transformed leg filled with sperm is inserted into the female’s sexual orifice — like a ski boot in its binding.


How erotic. These kind of modified special appendages speak to the plasticity of multicellular organisms. There's a dirty joke in there somewhere, but I'm sure you're clever enough to supply your own setup and punchline.

I like the diametric conclusions drawn, most of which makes sense.

On the one hand detaching part of the genital organ could help the male to escape from the female’s murderous attack. On the other hand it might be a mechanism ensuring that paternity is maintained, preventing or impeding further copulation by the female.


Enjoy the hard source for those interested in further detail. Of course, any time you can work the term 'genital damage' into your title, you know you're gonna get some press! Here you are!

Friday, September 22, 2006

Visceral Reactions

Via Mind Hacks: Cadaver Video Dissections! As a graduate student, I had a chance to assist a good pal of mine in directing the cadaver lab for the A&P section of the nursing degree. An old chestnut I like to spin was how a dead man can make you so sore, since working a bone saw or manipulating the body to different positions is a physical workout. Anyways, not for the faint-hearted.