Hot frog song (AUDIO)
Caption
A Sierran treefrog sings a faster, more energetic breeding call in warm weather. When it's cold, his songs are sluggish and slow, which female frogs find less attractive.
Credit
Julianne Pekny/UC Davis
Usage Restrictions
Credit must be given to the creator. Only noncommercial uses of the work are permitted. Adaptations must be shared under the same terms.
License
CC BY-NC-SA