Posts tagged ‘Cocoon’

How does a silkworm make its silk?

Silkworm

The silkworm is really the caterpillar of the silk moth.  It spins a cocoon of silk just as other moth caterpillars do, but its silk is especially fine. The silkworm makes its silk by oozing a long thread of gluey liquid out of its mouth.

As soon as the liquid touches the air, it hardens into a silk thread.  Then the silkworm spins the silk thread around and around its body to form a cocoon.

 To get the silk, people give the cocoon a stream both to loosen the gum that holds the thread in place.  Then they can unwind the cocoon.  From the thread, fine silk cloth is woven.–Dick Rogers

Where do insects go in the winter?

Tiny Living Things

Many insects die when winter approaches.  But some live through the cold by hibernating.

Have you noticed that insects seems to disappears in the fall?  Where do the butterflies and bees go during the winter?

Cold weather sends the ant scurrying into its underground home.

The cricket sleeps all winter in a little crack in the ground.  We say it hibernates.

Some other insects hibernate, too.  The moth caterpillar spends the winter wrapped, snuggly in its cocoon.  By spring, it has changed into a moth, which breaks out of the cocoon and flies away.

In the fall, the orange and black monarch butterfly flies south to warmer country.  It migrates.

Ladybugs migrates, too

Bumblebees die at the end of summer and only the queen bumblebee lives through the winter to start in new colony in the spring.

Honeybees are luckier.  They huddle together for warmth in their beehive and eat the honey they collected during  the summer.

Most other insects die with the first frosts, but they leave behind large numbers of insect eggs to hatch in the spring.  – Dick Rogers

What is a lungfish?

Lungfish

Did you ever hear of a fish that could live our of water?  The lungfish can.

As one would guess by its name, the lungfish has a lung, as well as gills, that enables it to live out of the water.  Lungfish live in Africa, South America, and Australia.

The African lungfish is probably the best know it is also called a mudfish.  The African lungfish ahs an eel-shaped body that may grow to be over a foot long.

It lives in swamps and muddy rivers of Africa.  In the summer the streams in which the lungfish lives may dry up for months at a time.

As the dry season nears, the lungfish burrows deep in the mud.  It can spend the whole summer in its cocoon of hardened mud beneath the dried-up stream bed, getting air through a small hole and living on fat stored in its own body.

When  the wet season comes, the water softens the hard mud cocoon and the lugnfish swims about again.

Did you ever hear of a fish that could live our of water?  The lungfish can.

As one would guess by its name, the lungfish has a lung, as well as gills, that enables it to live out of the water.  Lungfish live in Africa, South America, and Australia.

The African lungfish is probably the best know it is also called a mudfish.  The African lungfish ahs an eel-shaped body that may grow to be over a foot long.

It lives in swamps and muddy rivers of Africa.  In the summer the streams in which the lungfish lives may dry up for months at a time.

As the dry season nears, the lungfish burrows deep in the mud.  It can spend the whole summer in its cocoon of hardened mud beneath the dried-up stream bed, getting air through a small hole and living on fat stored in its own body.

When  the wet season comes, the water softens the hard mud cocoon and the lugnfish swims about again. – Dick Rogers