加拿大一艘觀光船在海中心欣賞風景時，突然有一隻海豹爬到船上來。當大家在大惑不解時，就看到有數條虎鯨出現，在船邊徘徊，相信海豹是為了逃命而躲到船上來。
a tour boat in Vancouver was in the middle of the sea enjoying the view when a seal hops on their boat. the people were a bit confused until few minutes later, a group of orcas swam over and started to circle the boat, then they understand the seal was trying to escape its predators.
http://www.mnn.com/earth-matters/animals/videos/seal-hops-tour-boat-killer-whales-circle
