desert bugs - Top That! Publishing
desert bugs - Top That! Publishing
desert bugs - Top That! Publishing
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What is the difference between a dragonfly and a damselfly<br />
Damselflies also belong to the group Odonata, and<br />
can easily be mistaken for dragonflies unless you know<br />
what to look for. Both dragonflies and damselflies have<br />
four wings, but a dragonfly’s hind wings are usually<br />
shorter and broader than its front wings. A damselfly’s<br />
wings are equal in size and shape. Dragonflies are<br />
usually larger than damselflies, and when a dragonfly<br />
is at rest, it holds its wings out from its body, whereas a<br />
damselfly folds its wings along the length of its body.<br />
Although both are often found near water, dragonflies<br />
venture further afield.<br />
Why do dragonflies have big eyes<br />
Like many insects, a dragonfly’s eyes take up most of its<br />
head, giving it a 360-degree field of vision. Each<br />
human eye has just one lens, but a dragonfly has many<br />
thousands of lenses in each eye (called compound<br />
eyes). This means it can see in front, above, below and<br />
behind – perfect for detecting the slightest movement,<br />
whether to catch prey or escape from danger.<br />
A dragonfly has 360-degree all-round vision.<br />
14<br />
A damselfly folds its wings along the length of its body<br />
(left), whereas a dragonfly’s are held away.<br />
Why do dragonflies live by water<br />
Dragonflies are often seen near water because this is<br />
where the female lays her eggs. When the eggs hatch,<br />
the larvae (called nymphs) live beneath the water,<br />
breathing through gills and feeding on tadpoles and<br />
small fish. Dragonflies stay in this laval state for up to<br />
five years. When they are ready to become adults,<br />
they climb up a reed or piece of plant matter, where<br />
their old laval skin splits overnight and a beautiful<br />
dragonfly emerges in the warmth of the morning sun.<br />
Is a dragonfly a type of fly<br />
While it’s true that both dragonflies and flies are<br />
insects, flies have just two wings, whereas dragonfiles<br />
have four. So, a dragonfly is not a type of fly. As a<br />
general rule, most insects have four wings; flies are<br />
the exception.