"The Hippo was closer to the boat than what it appears on the video," the elder Jackson wrote on Youtube. "It is amazing how fast a Hippo can move in water; never underestimate a Hippo speed by its physical size." The Jacksons were on a photographic tour run by Pangolin Photo Safaris when the incident took place. The tour group was lucky, as, despite their cute appearance, hippos can be extremely dangerous to encounter. The water giants can weigh up to 3 tons and kill a few thousand people per year.
As the video displays, and Jackson confirms, a hippo's size doesn't seem to be an impediment when it wants to seriously motor after something.