5. Purple Frog Seduces Females From Underground
The Indian purple frog, also known as the pig-nosed frog with a chubby, purple body and pointed, piglike snout; spends most of the year underground. With the help of it’s short, stout limbs like spades; the animal dig as far as 12 feet (3.7 meters) below ground.
According to scientists from India’s University of Delhi and the University of Minnesota; the males call out from underground beneath a thin layer of dirt near the entrance of narrow tunnels filled with loose soil after heavy downpour, to attracts females when they emerge for a brief period during the monsoon season to mate.
When males call, they contract their muscles and inflate and deflate their vocal sacs, making sounds in short, rapidly repeating pulses.