desert bugs - Top That! Publishing
desert bugs - Top That! Publishing
desert bugs - Top That! Publishing
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Which insect helps to turn over the soil<br />
There are at least 2,700 different kinds of earthworm.<br />
These amazing wriggling creatures tunnel deep into<br />
the soil, turning it over and over like a plough. This<br />
creates tunnels that supply the soil with air, and allow<br />
water to penetrate all of the time. The topsoil and sub<br />
soil also mix together, making earthworms<br />
nature’s help to gardeners.<br />
An earthworm.<br />
Why is it so hard to pull a worm out of the ground<br />
You may have watched a hungry<br />
bird busy tugging at the soil, and<br />
it’s a safe bet that there’s a tug-ofwar<br />
going on between the worm<br />
and the bird. The worm has four<br />
pairs of hooks called setae, which<br />
can stick to soil particles and<br />
make it very hard for the worm to<br />
be pulled from its hole!