humans can recognize emotions across all vocalizing land animals, researchers have found.
The research supports naturalist Charles Darwin’s views from over a century ago, When he observed that humans and other animals express their emotions in similar ways.
the findings could have applications for animals welfare, as humans could relate on their insights to recognize, for example, if an animal is stressed. Previous research on the topic of animal vocalizations has suggested that animals understand human emotional sounds.
for example, pet owners are routinely attached to this and their pets recognize their emotional outbursts.
Previous studies have also suggested that acoustic attributes of emotional (aroused) vocalizations are shared across many mammal species, And that humans can use these attributes to determine an animal’s emotional state.
But researchers weren “t sure if this also extended to land animals that aren” t mammals.
To find out, an international team of researchers gathered the voice recordings of a diverse group of nine different species: The black-capped chickadee, hourglass treefrog, American alligator, common raven, giant panda, Barbary macaque and the African bush elephant.
in order to find out the truth, an international research team collected the voices of nine different animals from different groups: blacktop tit, hourglass tree frog, American alligator, crow, giant panda, Barbary macaque and African jungle elephant.
then, research participants were asked to listen to the recordings and try to identify the emotional state of the animal who made it.
To rule out the possibility that certain sounds may be more recognizable by people who speak certain language, the researchers recruited volunteers who spoke German, English or Mandarin.
in order to exclude the possibility that some sounds can be recognized by people who speak a certain language, the researchers recruited volunteers who speak German, English and Mandarin respectively.
The researchers also carried out an acoustic analysis of the sounds on the recordings, comparing the sounds with people’s reactions to them and found that humans use many acoustic clues to understand emotional noises made by other animals.
researchers also conducted acoustic analysis of the sound in the recording, comparing the sound with people’s response to it, and found that humans can use many acoustic clues to understand the emotional sound produced by other animals.