Dragonflies (Order Odonata) definitely live more than 24 hours. Although the adults are relatively short-lived (usually no more than four weeks), the aquatic immatures (naiads) may live for up to three years before molting to the adult stage. Your friend may be mistaking them for mayflies (Order Ephemeroptera), in which the adults of some species do not live more than a day or so. Well, I don't know if I'm really improving his/her answer but drogaonflies live for a very little time. They are very weak and fragile, and even though they're tiny they could be pretty noticable by their predators.
604 days
Meganeura- a dragonfly type insect with an approximate 2 foot wingspan.
The dragonfly is from the Animalia Kingdom, Arthropoda Phylum, Insecta Class, Odonata Order, Anisoptera Sub-order, and the Aeshnidae Family. There are 11 dragonfly families. The Aeshnidae Family includes the largest dragonflies found on earth. They are also the fastest-flying dragonflies.
The average size of a dragonfly is from 1 to 4 inches in length
The dragonfly's weight is similar to that of a butterfly, around 0.0001 ounce (0.003 grams) for the smallest, to 0.1 ounce (3 grams) for the largest.
why is a dragonfly not a fly
Both the butterfly and the dragonfly are insects, but the dragonfly is larger.
a dragonfly is considered and insect because it has six legs
The plural of dragonfly is dragonflies.
the real name of the dragonfly is dragonfly. but although dragonfly's have different species
we don't know but a past dragonfly was bigger.
Dragonfly nymphs are aquatic and do not closely resemble the adults. See the link for a picture of a dragonfly nymph.
A boy dragonfly has colours on it and a girl drongonfly has dark courlers