Animals who try to sound 'bigger' are good at learning sounds

Some animals fake their body size by sounding 'bigger' than they actually are. Maxime Garcia from the University of Zurich and Andrea Ravignani from the Max Planck Institute for Psycholinguistics studied 164 different mammals and found that animals who lower their voice to sound bigger are often skilled vocalists. Both strategies--sounding bigger and learning sounds--are likely driven by sexual selection, and may play a role in explaining the origins of human speech evolution.