Chiropterologists Chelmala and Bhargavi Srinivasulu are researchers at Osmania University in Hyderabad, India. They have been called the bat man and bat woman of India. The title suits them, they say. And their chiropteran-infused love has guided their passion for finding, studying and ultimately helping to protect endangered bat species all over India. And it is what launched them on a strange and, at times, dangerous journey to find a bat that had not been seen in two decades- the Kolar leaf-nosed bat.