ARAN: They’re not just influenced by loud sounds, like a jet going overhead; But they’re also influenced by relatively quiet sounds. ARAN: We often think of the really loud sounds like underwater explosions or drilling for oil or maybe sonar. But small increases in the background noise, at least small disturbances can really influence the animals. So, after years of studying sound in animals, Mooney says it’s clear that our impact on noise may have the furtherest reaching consequences across the animal kingdom. ARAN: Even just in the areas we’ve been studying puffins we’ve worked in somewhat secret habitats, meaning there aren’t a lot of tourists visiting these areas.