The Animals; We Fear Most?

In a new study, published in The Journal of Psychology on June 11, a team at the National Institute of Mental Health and Charles University showed volunteers 25 different animal images to gauge their fear and disgust.

Spiders were the clear winner (cats, side note, were at the extreme opposite end of the scale). The team, led by Jakub Polák, surveyed 2,291 volunteers from a Facebook group comprised of Czech and Slovakian volunteers to better understand animal phobias. They grouped the images in five clusters:

• • Non-slimy invertebrates
• • Snakes 
• • Mice, rats, and bats 
• • Human endo- and exoparasties 
• • Farm/pet animals

Animal phobias, the team writes, comprise some of our most severe mental phobias. They point out that the horror film industry has exploited this fact, with over 8,000 titles released in 2017 alone, many of which involve some sort of animal trigger. Fear is one of those odd drivers of human imagination. The rush of adrenaline and cortisol, even when evoked by existentially terrifying stimuli, remains addictive. Though we've separated ourselves from much of nature, innate biological instincts are an integral part of our biological operating system. Millions of years of commingling with numerous animal species, many of which are deadly to us, have instilled in our nervous systems quite reactive responses. The primary driver of this study: finding out which animals we instinctively recoil from.

Fear is immediately recognizable in the bigger species that could, if given the opportunity, easily maim and kill us: crocodiles, bears, lions, tigers, snakes. More intriguing are creepy-crawlies that are more likely to murder us with venomous bites and scratches, such as parasites and snakes, or infect us with a plague, such as rats and mice. These latter groups invoke an even deeper fear in us. Respondents showed that while fear of an attack from large game is warranted, critters closer to our everyday reality trigger mortal anxiety: infectious pathogens are more realistic than a bear attack. They write, "It is thus disgust, rather than fear, that is the primordial negative emotion involved in aversion to animals, particularly the smaller ones." Disgust is not limited to insects. Our olfactory sense is primed for it as well. Scrunching our noses at the scent of spoiled milk or rotten food, another harbinger of pathogens, remains an important avoidance technique for sickness. Yet there's something even more primal about diseases that crawl. ("Maggots, Michael, you're eating maggots. How do they taste?") The researchers discovered that the fear of predatory mammals does not spur disgust, while snakes, spiders, and parasites evoke both emotions.