Animals Explained: Origin, Traits, Feeding, and Development
0:00 / 3:26
Animals and their origin
0:00 - 0:35
What makes animals different
0:35 - 1:20
Sponges and feeding
1:20 - 1:59
Development from zygote to gastrula
1:59 - 2:39
Body plans and final recap
2:39 - 3:26