desert bugs - Top That! Publishing
desert bugs - Top That! Publishing
desert bugs - Top That! Publishing
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How does a caterpillar see its food<br />
Caterpillars live among<br />
their food so don’t need<br />
to look far to find the<br />
next tasty leaf. They<br />
have simple eyes so<br />
their eyesight is not<br />
very sharp – just good<br />
enough to make out<br />
light and shade.<br />
Can insects see things that we can’t<br />
Yes they can! Many insects can see ultraviolet light –<br />
the invisible light from the sun that humans and other<br />
animals cannot see. Many flowers rely on insects to<br />
pollinate them, and the petals of these flowers are often<br />
A flower taken<br />
with a normal<br />
camera (left)<br />
and an<br />
ultraviolet<br />
camera showing<br />
how an insect<br />
might see it.<br />
60<br />
A caterpillar’s simple<br />
eyes allow it to<br />
distinguish between<br />
light and shade.<br />
coloured in ultraviolet patterns that we humans can’t<br />
see. These patterns act like runways, directing the<br />
hungry insects straight into the flower’s centre, and to<br />
their dinner! This in turn pollinates the flower.