Mahabharata 13.133.52

पशूंश्च ये बन्धयन्ति ये चैव गुरुतल्पगाःप्रकीर्णमैथुना ये च क्लीबा जायन्ति ते नराः

paśūṃśca ye bandhayanti ye caiva gurutalpagāḥprakīrṇamaithunā ye ca klībā jāyanti te narāḥ

Our plain-language meaning of this verse is waiting for scholar review.