Raping other species... hmm... Dogs do it. Monkeys do it. Even humans do it. Why not seals? Maybe it's a sign of intelligence. 
Explain your theory to the poor frog...
...then to the children that actually witnessed the event live: https://www.youtube.com/watch?v=pCwk7pP80Z0
That poor frog. Can't imagine whats going through it's mind.
@Gleb Gamow, Shocking and horrendous, yet innovative.
@AltCoinTroll, I may be taking you too literally here, but it looks quite obvious to me. Not only is 'it' going through its mind, but its whole body in fact.
