Hernias may develop at different locations in the body, although an individual is unlikely to develop all four kinds of hernia shown here. A hiatal hernia occurs when the stomach pokes above the diaphragm into the chest. An umbilical hernia occurs at the belly button (umbilicus) and is most commonly seen in infants.
Predators of Adults. Adult dragonflies must dodge a broad assortment of predators, specifically arthropods, reptiles, fish such as bass, tiny mammals such as water shrews, frogs and fellow insects. Bees routinely go after mature dragonflies.redators of Adults. Adult dragonflies must dodge a broad assortment of predators, specifically arthropods, reptiles, fish such as bass, tiny mammals such as water shrews, frogs and fellow insects. Bees routinely go after mature dragonflies.
A dragonfly is an insect belonging to the order Odonata, suborder Anisoptera (from Greek Î±Î½Î¹ÏÎ¿Ï anisos uneven + ÏÏÎµÏÎ¿Ï pteros, wings, because the hindwing is broader than the forewing).ossils of very large dragonfly ancestors in the Protodonata are found from 325 million years ago (Mya) in Upper Carboniferous rocks; these had wingspans up to about 750 mm (30 in). About 3000 species of Anisoptera are in the world today. Most are tropical, with fewer species in temperate regions.