Śrīmad-Bhāgavatam · Text 11.9.28
Who is speaking and story frame
सृष्ट्वा पुराणि विविधान्यजयात्मशक्त्या
वृक्षान् सरीसृपपशून् खगदन्दशूकान् ।
तैस्तैरतुष्टहृदय: पुरुषं विधाय
ब्रह्मावलोकधिषणं मुदमाप देव: ॥ २८ ॥
sṛṣṭvā purāṇi vividhāny ajayātma-śaktyā
vṛkṣān sarīsṛpa-paśūn khaga-dandaśūkān
tais tair atuṣṭa-hṛdayaḥ puruṣaṁ vidhāya
brahmāvaloka-dhiṣaṇaṁ mudam āpa devaḥ
The Supreme Personality of Godhead, expanding His own potency, māyā-śakti, created innumerable species of life to house the conditioned souls. Yet by creating the forms of trees, reptiles, animals, birds, snakes and so on, the Lord was not satisfied within His heart. Then He created human life, which offers the conditioned soul sufficient intelligence to perceive the Absolute Truth, and became pleased.
Read the purport on Vedabase.ioFrom Canto 10, chapter 14 onward, the translation and purports were completed by Śrīla Prabhupāda's disciples after his departure, and published by the Bhaktivedanta Book Trust.