In the first sentence, "animated" means that the toddlers were lively, energetic, and enthusiastic in their description of the snake. It implies that they expressed their thoughts with excitement and vividness.
In the second sentence, "animate" refers to the process of bringing movement to the drawings, making them come alive with motion through the use of a computer program. Here, it is related to the technical aspect of creating animation.
So, the word "animate" has two different meanings in each context: one related to liveliness and expressiveness, and the other related to creating motion in artwork.