Penguins losing ability to fly
Anybody else kind of annoyed how the Discovery Channel script writers completely botched the reason why penguins have lost their ability to fly? Oprah made it seem like the evolved their flightless traits to hunt in the oceans, that doesn't explain why there are fishing birds in the northern hemisphere that have maintained their ability to fly. The real reason is that there are no land predators in the Antarctic (with the exception of seals which most penguins can out maneuver on land). If there were polar bears or arctic foxes on South Georgia Island or other primary penguin nesting grounds, they would have maintained their ability to fly.
Is it really too much to ask that an actual biologist fact check the the narration, or at the very least, just use the script the BBC version used? If you go off the American version, you would assume that animals are trying to "date" other animals out of romantic desire as opposed to the desire to survive. Wild animals don't have girlfriends/boyfriends, regardless of how cute Oprah thinks this concept is. In addition, with the exception of primates, animals cannot comprehend the concept of revenge over a previous transgression.