Frog eating bats and forgiveness

Smithsonian Tropical Research video article on Frog eating Bats  by Rachel Page shows nature with its conflicts and terrors.  The frogs must produce a mating call to get a mate and propagate.  The mating call is also what leads the frog eating bats to them.  And the bats can tell from the call if the frog is good eating or is poisonous.
And then reading Olin Morales in his blog C2C talking about all of the emotions that need to be felt before there can be "forgiveness"  Given the complexity of our world and our nature I wonder what the emotion of forgiveness feels like.