[ThrowawayR2]

A rather large number of animals kill and eat their young: https://www.nationalgeographic.com/science/article/140328-sl...

Seems unlikely to be fruitful to look to the animal kingdom as a benchmark for moral purity (and by human standards at that).

[rmbyrro]

Maybe natural selection plays a role?

Animals that were too soft with their offspring failed to prepare them for a tough world and, thus, also failed to secure long term species survival.