I interviewed at Bi-Mart (Madras, OR) in September 2016. The interview lasted about 25 min and was extremely laid back. He spent more time talking about Bi-marts operations and friendly, for the employee, work place then anything else.
Confidence votes 13. Whales, like otters, porpoises, and all other swimming mammals, undulate their spines rhythmically, waving their tails and flipping the flukes at the end, propelling them forward.
Watch a salamander move, or even a crocodile: Its body twists from side to side with each step. Now compare to how a mammal walks. (Or a dinosaur, for that matter.) Instead of swinging their whole body side to side, the spine flexes up and down, and the legs swing directly forward and backward. OK, so marine mammals evolved from creatures specialized for walking, with spines that flex up and down but not side to side. That means that to transmit the force from their spine to the water, the tail needs to be horizontal, not vertical. Written Jun 29, 2014 â¢ View Upvotes â¢ Not for Reproduction.