Two Trekking Transients
When you have the chance to watch orcas in their natural habitat, you can't help but be humbled. These magnificent creatures can regularly swim over 100 miles in a day and can dive up to 900 feet - needless to say, they can cover significant distances in a short amount of time. But all that travel, combined with breaks for hunting and socializing, can sure tucker out a trekking transient. So what's a tired whale to do?
Uni-hemispheric sleep, we call it! It's a technique utilized by...