There’s no love in this world like the love of a mother or father for a child. It’s beautiful and often times can be seen across species barriers. We’re not the only ones capable of it, and these heartwarming photos of animal parents will show you that for sure.

We tend to separate animals into two different categories based on how they rear their children. Those are the R and K categories. K categories include animals like cats, elephants, and humans. They have few babies but have longer gestation periods. Their offspring tend to require more care and for much longer time. The R category is more focused on quantity for survival. Here are some great examples of K animals: