Sometimes they became lions, sometimes tigers and sometime, they disappeared. By assuming such forms, they killed the Rishis wherever they saw them.
सिंहौ भूत्वा पुनर्व्याघ्रौ पुनश्चान्तर्हितावुभौ। तैस्तैरुपायैस्तौ क्रूरावृषीन् दृष्ट्वा निजजतुः॥