On 2/13/2015 8:28 AM, Bruno Marchal wrote:
I think asking for expression in language is to anthropocentric. Mammals all express
fear by producing adrenalin and increasing heart rate.
They show that they have fear, with adrenaline. But they are wired to makes sound, like
barking, to communicate that fear, or the danger around, to other animals.
Only social animals. Solitary animals are generally quiet when frightened so as to not
draw attention to their position. Some, like opossums even play dead.
Brent
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