Saturday, June 23, 2012

Breeding-tie in dogs

Frequently we see dogs move in groups, as they too are social as we are
. But sometimes, especially during the monsoon season, when dogs are seen standing as a pair they are shouted at and driven away. We do not like their such pairing on the streets and dislike it. But anxious people have a quick look at them and turn their heads away. These dogs after their pairing or mating cannot separate themselves from each other. Most of the people move away pitying on them, but also with a puzzling question in their mind's corner, 'Poor things, why they cannot separate themselves now?'

Friday, June 15, 2012

Liquid metal - the element Mercury!

When I was a school student, I applied a drop of (metal) mercury on the (metal) lead found on the joint of a divider instrument of my geometry box. A greyish white material resembling holy ash kept on coming out from it like in a magic show; even when I wiped it off it continued its coming out! This is the Amalgam that is formed by such dissolving of Lead element (Pb) in Mercury element (Hg).

Friday, June 8, 2012

The tiniest muscle, Stapedius, protects hearing!

In one of my earlier blog posts I had intimated about the smallest bone in our body. Now we shall see here which one is the smallest skeletal muscle. There are two of it, one in each of our two middle ears. It is the Stapedius muscle. Its length is 1.27 mm only!

Saturday, June 2, 2012

Living on the tree; a bird? No, Indian Tree Frog!

Every year I receive a leaping visitor. It alerts us about its visit by scaring us with its repeated landing-on-sounds! This brownish yellow animal is found often in moist bathroom buckets or clinging on to one of ceiling corners. On seeing me approach, it jumps, climbs on slippery walls and falls down; hastens to hide itself by cuddling in a corner. This visitor is our Tree Frog (Common Indian Tree Frog, Chunam Tree Frog, Polypedates maculatus).
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