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Dragonfly vision is thought to be like slow motion for humans. Dragonflies see faster than humans do; they see around 200 images per second. [80] A dragonfly can see in 360 degrees, and nearly 80 per cent of the insect's brain is dedicated to its sight. [81]
Odonata is an order of predatory flying insects that includes the dragonflies and damselflies (as well as the Epiophlebia damsel-dragonflies). The two major groups are distinguished with dragonflies (Anisoptera) usually being bulkier with large compound eyes together and wings spread up or out at rest, while damselflies (suborder Zygoptera) are usually more slender with eyes placed apart and ...
This particular type of skimmer varies in size but is generally measured somewhere between 2 and 3 inches (5.1 and 7.6 cm) long. [2] [page needed] The naiads are known for being rather large and chubby-looking due to their rounded abdomen. They are covered with hair but, unlike most young dragonflies, they lack hooks or spines.
Adults don't live long comparatively, perhaps a few weeks or months, and for this reason, Serafice says, dragonflies may also serve as a reminder to be present, enjoy life to the fullest and live ...
The dragonfly is up to 4.5 cm long, [6] reaching wingspans between 7.2 cm and 8.4 cm. [7] [8] [9] The front side of the head is yellowish to reddish. The thorax is usually yellow to golden coloured with a dark and hairy line.
Males also have secondary genitalia (including the anterior lamina, hamuli and posterior lamina) on S2 and S3. Female damselflies and some dragonflies have a strong ovipositor on the underside of S8 and S9, but in many dragonflies the egg-laying apparatus is merely a spout, a basket, or a pair of flaps. Some species have foliations (leaf-like ...
Compared to dragonfly larvae, the nymphs show little variation in form. They tend to be slender and elongate, many having morphological adaptations for holding their position in fast flowing water. They are more sensitive than dragonfly nymphs to oxygen levels and suspended fine particulate matter, and do not bury themselves in the mud. [25]
The emperor dragonfly is a large and bulky species. It is 73–82 mm (2.9–3.2 in) long, with average being 78 mm (3.1 in) and males growing larger than females. [2] [6] The average wingspan is 104 mm (4.1 in). [6] When they first emerge, both sexes appear pale green with brown markings. The legs are brown with a yellow like base.