What is flies by?

Flies are insects belonging to the order Diptera, which means "two wings." They have two wings and a pair of halteres, which are small club-like structures that help them maintain balance during flight. There are over 120,000 known species of flies, ranging in size from less than a millimeter to over an inch in length.

Flies are found all over the world and can thrive in a variety of environments, from deserts to rainforests. They play important roles in ecosystem functioning, serving as pollinators, predators, and decomposers.

While some species of flies are beneficial, others can be pests. House flies, for example, can transmit disease-causing bacteria and viruses to humans and animals. Fruit flies can spoil fruit and other perishable items in the home.

Flies have short lifespans, ranging from just a few days to a few months, depending on the species. They undergo a complete metamorphosis, with four stages: egg, larva, pupa, and adult.

Flies have unique sensory and feeding structures, such as compound eyes, antennae, and mouthparts adapted for lapping up liquids or piercing and sucking blood. They are also known for their impressive flight agility, with some species capable of flying backwards, upside down, or hovering in place.