Ecologists have recently begun describing humans as a 'super predator' given that our species kills prey at much higher rates than other predators.
Elephants, rhinos, and other African mammals are far more scared of hearing human voices than lion vocalizations or even hunting sounds, a study has found.The findings, published in the journal Current Biology, have shed new light on the ecological impact of humans on the natural world, according to the researchers.
Importantly, the human voice clips were played at conversational volume levels. The lion vocalizations used, meanwhile, were snarls or growls—comparable to humans speaking conversationally—rather than roars.The camera-speaker system was operational for six weeks during the dry season, filming the responses of every type of animal that came to drink. This amounted to 19 different species in total, including giraffes, leopards, hyenas, zebras, kudu, warthog, impala, elephants and rhinoceroses.
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