Using scanning electron microscopy, the team from Bristol's School of Biological Sciences discovered that the thorax scales of the moths Antherina suraka and Callosamia promethea looked structurally similar to fibres that are used as noise insulation, so wanted to explore whether the thorax scales of moths might be acting in some way to absorb the ultrasonic clicks of bats and dampen the echoes returning to the bat, offering the moths a type of acoustic camouflage. Many predators take advantage of the high concentrations of bats in roosts. Predators of eastern red bats include foxes, birds of prey, snakes and opossums. The team of researchers from the University of Bristol wanted to investigate the alternative defences against bats that some species of deaf moths might have evolved. There are three species of blood-drinking bats, but don’t worry they tend to prey on livestock like cattle and horses, attacks on humans are very rare Vampire bats can be found hunting at night in Mexico and other Central and South American countries. as they are top predators of common nocturnal insects and are sensitive to. Bats also play an important role in reducing risks of insect-borne. Bats are a vital part of our native wildlife, accounting for almost a third. One defence that many nocturnal insects evolved is the ability to hear the ultrasonic calls of bats, which allows them to actively evade approaching bats. Bats are major consumers of agricultural and forest pests, and predators of biting insects. The technique, which is also known as biological sonar, first evolved around 65 million years ago and enables bats to search for and find prey putting huge predation pressure on nocturnal insects.
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