Ramayana
खरैरुष्ट्रैर्हयैर्दीप्तैः शिंशुमारैर्महोरगैः । राक्षसाः प्रययुः सर्वे कृत्वा ऽ ऽकाशं निरन्तरम् ॥ 7-25-36 ॥
Upon asses, camels, horses, blazing crocodiles, and great serpents, all the Rakshasas advanced, filling the sky so that it was without a gap.
english translation