Pigs, Wildbores, and Mants will eat teatree seeds, birchnuts and coconuts

Pigs, Wildbores and Mants will eat the three spoilable saplings in the game, however although two of the three are edible in the inventory this behavior feels unintentional. Since one of these mobs primary functions is to cut down trees, it feels strange and unintended that they would be purposely detrimental to your tree cutting process. Coconuts are inedible so it doesn't make sense to me why they should eat them.