Common Surinam toad

It is believed that the female receives special stimuli from the young to distinguish them from other creatures.

An excerpt from the article 15 facts about common Surinam toad

It has been observed that in adult Surinam toads the strongest food stimulus is the presence of some moving object touching their legs or head area, which the toad grasps with a vigorous mouth movement. However, no young specimens that stimulated the mother in this way were observed to be eaten by her.