Hybrids don&#x27;t always get averaged traits.  Take my dog, a mutt.  She is bigger than both her pure-bred parents, taller by more than an inch.  In big cats a tigon, a lion-tiger cross, is bigger than either.  The principal even holds true for humans.  Obama, of mixed race, is unsurprisingly taller than both parents.  This is sometimes called hybrid vigour.  My point is that a cross between two different animals doesn&#x27;t always result in something in the middle.  This crossed whale may be very different than either parent.